Document:

<PAGE>

                                                                   EXHIBIT 10.33

                      SECOND AMENDMENT TO CREDIT AGREEMENT

         THIS SECOND AMENDMENT TO CREDIT AGREEMENT (this "AMENDMENT") dated
effective as of February 1, 2003, is between MOUNTAIN COMPRESSED AIR, INC., a
Texas corporation (hereinafter referred to as "BORROWER") and WELLS FARGO ENERGY
CAPITAL, INC. ("LENDER").

                                    RECITALS:

         A. Lender and Borrower entered into that certain Credit Agreement dated
as of February 6, 2001, as amended by that certain First Amendment to Credit
Agreement dated February 1, 2002 (as amended, the "AGREEMENT) in conjunction
with that certain senior secured credit facility from Wells Fargo Bank Texas,
National Association ("WFB"), dated February 6, 2001, as same has been amended
from time to time (the "SENIOR CREDIT FACILITY") and Master Lease and Supplement
No. 69749-1000 (the "EQUIPMENT LEASE") between Borrower and Wells Fargo
Equipment Finance, Inc. ("WFB FINANCE").

         B. Borrower and WFB have agreed to enter into that certain Sixth
Amendment to Credit Agreement (the "SIXTH AMENDMENT TO SENIOR CREDIT Facility")
and Borrower and WFB Finance have entered into that certain Forbearance
Agreement dated January 17, 2003 (the "WFB FINANCE FORBEARANCE AGREEMENT").

         C. Certain Events of Default under the Agreement have occurred
including: (i) Borrower's failure to comply with the financial covenants set
forth under Section 4.09 of the Agreement, (ii) Borrower's failure to pay
accrued interest since July 3, 2002, and (iii) Borrower's default under the
Senior Credit Facility as more particularly described under the Sixth Amendment
to Senior Credit Facility and under the Equipment Lease as more particularly
described under the WFB Finance Forbearance Agreement (the "DESIGNATED
DEFAULTS").

         D. The amount of past due interest under the Term Loan through December
31, 2002, is $122,666.67 ("PAST DUE INTEREST AMOUNT").

         E. Borrower has requested that Lender, among other things, forebear
exercising any remedies with respect to the Designated Defaults, receipt of
payment of the Past Due Interest Amount until June 30, 2003, and agree to
rearrange current interest payments under the Term Loan. Lender has agreed to do
so, subject to the terms and conditions contained herein.

         F. Borrower and Lender now desire to enter into this Amendment on the
terms set forth herein.

         NOW, THEREFORE, in consideration of the premises herein contained and
other good and valuable consideration, the receipt and sufficiency of which are
hereby acknowledged, the parties hereto agree as follows:

<PAGE>

                                    ARTICLE 1

                                  GENERAL TERMS

         Section 1.1 TERMS DEFINED IN AGREEMENT. As used in this Amendment,
except as may otherwise be provided herein, all capitalized terms which are
defined in the Agreement, as amended, have the same meaning herein as therein,
all of such terms and their definitions being incorporated herein by reference.

         Section 1.2 CONFIRMATION AND EXTENT OF CHANGES. All terms which are
defined or referred to in the Agreement shall remain unchanged except as
otherwise specifically provided in this Amendment. It is hereby confirmed that
the term "AGREEMENT" includes the Agreement as amended by this Amendment.

                                    ARTICLE 2

                           AMENDMENTS AND FORBEARANCE

         Section 2.1 AMENDMENT TO SECTION 1.1(b). Effective as of the date
hereof, Section 1.1(b) of the Agreement is hereby amended to read in its
entirety as follows:

                  "(b) REPAYMENT. Principal and interest on the Term Loan shall
                  be repaid in accordance with the provisions of the Term Note
                  with a final maturity date of June 30, 2003 (the "MATURITY
                  DATE"), PROVIDED THAT, the Past Due Interest Amount (as
                  hereinafter defined) shall be due and payable on June 30, 2003
                  and, notwithstanding anything contained in the Term Note to
                  the contrary, all interest accruing from January 1, 2003,
                  through June 30, 2003 shall be payable as follows:

                           (i) one half of such accrued interest shall be due
                  and payable on a current basis on the last day of each month
                  as it accrues, provided that the interest accruing for the
                  month of January, 2003 shall be due and payable on or before
                  February 10, 2003, and

                           (ii) the balance shall be due and payable at the
                  Maturity Date.

                  As used herein, the "Past Due Interest Amount means the amount
                  of past due interest due under the Term Loan, which amount is
                  equal to $122,666.67."

         Section 2.2 FORBEARANCE. From the effective date hereof until the
earlier of (i) the Maturity Date or (ii) an Event of Default under this
Amendment or under the Agreement other than the "Designated Defaults" (the
"FORBEARANCE PERIOD"), Lender will forbear from exercising any remedies against
Borrower with respect to the Designated Defaults.

         Section 2.3 NO WAIVER OF RIGHTS. Acceptance by Lender of any payments
or property hereunder or forbearance by Lender pursuant to the terms of this
Amendment shall not be construed to be a waiver of any default or a waiver of
any rights of Lender against Borrower in accordance with the Agreement, or any
other Loan Documents. Borrower acknowledges and agrees that Lender shall retain

                                      -2-
<PAGE>

all remedies and rights of default and shall be permitted to exercise and
enforce such rights and remedies upon the termination of the Forbearance Period.
Borrower further agrees that any remedy available to Lender upon termination of
the Forbearance Period shall not be affected by reason of the forbearance
provided for herein and Borrower shall not assert as a defense thereto the
passage of time, course of dealing, estoppel, laches or any statute of
limitations.

         2.4 LIMITED SCOPE OF AGREEMENT. Except as otherwise expressly set forth
herein, all obligations of Borrower under the Agreement shall remain in full
force and effect as written and shall be enforceable in accordance with their
respective terms, subject to applicable bankruptcy, insolvency, fraudulent
conveyance, reorganization, moratorium and similar laws affecting creditors'
rights and remedies generally. Borrower acknowledges and agrees that, except as
specifically set forth in SECTION 2.2, Lender has not made any agreement to
forbear from exercising or enforcing any rights or remedies it may have as a
result of any other failure by Borrower to comply fully with the Agreement or
the terms of this Amendment.

         2.5 COMPLIANCE WITH EXISTING LOAN DOCUMENTS; ADDITIONAL COVENANTS.
Unless expressly modified or amended herein, Borrower shall comply with, and
shall continue to be bound by, each of the terms and provisions contained in the
Agreement. In addition, Borrower shall comply with, and shall be bound by, each
of the terms and provisions contained herein.

                                    ARTICLE 3

                         REPRESENTATIONS AND WARRANTIES

         In order to induce Lender to enter into this Amendment Borrower
represents and warrants (which representations and warranties will survive the
execution and delivery hereof and will be deemed for all purposes to be
additional representations and warranties of the Agreement) that:

         Section 3.1 REPRESENTATIONS AND WARRANTIES OF THE AGREEMENT AND THE
LOAN DOCUMENTS. The representations and warranties of Borrower contained in the
Agreement and the Loan Documents and otherwise made in writing by or on behalf
of Borrower pursuant to the Agreement and the Loan Documents were true and
correct when made, and are true and correct in all material respects at and as
of the time of delivery of this Amendment, except for such changes in the facts
represented and warranted or amended by this Amendment.

         Section 3.2 ACKNOWLEDGMENT OF INDEBTEDNESS. Borrower acknowledges that
it is indebted to Lender under the Term Note, that the amount of unpaid interest
under the Term Note through December 31, 2002, is $122,666.67, and the
Indebtedness is due and owing by Borrower pursuant to the terms of the Agreement
as amended by this Amendment without offset, defense or counterclaim.

                                      -3-
<PAGE>

         Section 3.3 COMPLIANCE WITH OBLIGATIONS. Except for the Designated
Defaults, Borrower has performed and complied with all agreements and conditions
contained in the Agreement and the Loan Documents required to be performed or
complied with by Borrower prior to or at the time of delivery of this Amendment.

         Section 3.4 DEFAULTS. Except for the Designated Defaults, there exists,
and after giving effect to this Amendment, will exist, no default or Event of
Default, or any condition, or act which constitutes, or with notice or lapse of
time (or both) would constitute an event of default under any loan agreement,
note agreement, or trust indenture to which Borrower is a party.

         Section 3.5 NO AMENDMENTS. Nothing in Article 3 of this Amendment is
intended to amend any of the representations or warranties of the Agreement.

                                    ARTICLE 4

                                   CONDITIONS

         Lender has relied upon the representations and warranties contained in
this Amendment in agreeing to the amendments to the Agreement set forth herein
and the amendments to the Agreement set forth herein are conditioned upon and
subject to the accuracy of each and every representation and warranty of
Borrower made or referred to herein, to the performance by Borrower of its
obligations to be performed under the Agreement and the Loan Documents on or
before the date of this Amendment and to the following further conditions:

         Section 4.1 RESTRUCTURE DOCUMENTS. Borrower shall have entered into the
Sixth Amendment to Senior Credit Facility and the WFB Finance Forbearance
Agreement shall be in full force and effect. Lender, WFB and WFB Finance shall
have entered into an amendment to the Subordination and Intercreditor Agreement
consenting to the revised payment terms under the Term Note as provided under
this Amendment in form acceptable to Lender.

         Section 4.2 OFFICER'S CERTIFICATE. Lender shall have received a
certificate of the officers of Borrower setting forth (i) resolutions of its
board of directors in form and substance satisfactory Lender authorizing
Borrower to execute this Amendment and such other documents to which it is a
party, and (ii) specimen signatures of the officers so authorized.

         Section 4.3 ADDITIONAL DOCUMENTATION. Borrower shall deliver to Lender
such additional approvals, opinions or documents as Lender may reasonably
require.

                                    ARTICLE 5

                                  MISCELLANEOUS

         Section 5.1 LOAN DOCUMENTS. All Loan Documents shall secure the
indebtedness and obligations previously secured by such Loan Documents, as such
indebtedness and obligations are affected by this Amendment (including, without
limitation, the Term Note), whether or not such Loan Documents shall be
expressly amended or supplemented in connection with this Amendment.

                                      -4-
<PAGE>

         Section 5.2 EXTENT OF AMENDMENTS. Except as otherwise expressly
provided herein, the Agreement, the Loan Documents and the other instruments and
agreements referred to therein are not amended, modified or affected by this
Amendment.

         Section 5.3 EFFECTIVE DATE. Except as otherwise expressly provided
herein, the effective date of all provisions of this Amendment shall be the date
of execution indicated below.

         Section 5.4 TITLES OF ARTICLES, SECTIONS AND SUBSECTIONS. All titles or
headings to articles, sections, subsections or other divisions of this Amendment
are only for the convenience of the parties and shall not be construed to have
any effect or meaning with respect to the other content of such articles,
sections, subsections, or other divisions, such other content being controlling
as to the Agreement among the parties hereto.

         Section 5.5 COUNTERPARTS. This Amendment may be executed in two or more
counterparts. It will not be necessary that the signatures of all parties hereto
be contained on any one counterpart hereof; each counterpart shall be deemed an
original, but all of which together shall constitute one and the same
instrument.

         Section 5.6 ENTIRE AGREEMENT. THIS AMENDMENT AND ALL OTHER INSTRUMENTS,
DOCUMENTS, AND AGREEMENTS EXECUTED AND DELIVERED IN CONNECTION WITH THIS
AMENDMENT EMBODY THE FINAL, ENTIRE AGREEMENT AMONG THE PARTIES HERETO WITH
RESPECT TO THE SUBJECT MATTER HEREOF AND THEREOF AND SUPERSEDE ANY AND ALL PRIOR
COMMITMENTS, AGREEMENTS, REPRESENTATIONS AND UNDERSTANDINGS, WHETHER WRITTEN OR
ORAL, RELATING TO THIS AMENDMENT AND THE OTHER INSTRUMENTS, DOCUMENTS AND
AGREEMENTS EXECUTED AND DELIVERED IN CONNECTION WITH THIS AMENDMENT, AND MAY NOT
BE CONTRADICTED OR VARIED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS OR SUBSEQUENT
ORAL AGREEMENTS OR DISCUSSIONS OF THE PARTIES HERETO. THERE ARE NO ORAL
AGREEMENTS AMONG THE PARTIES HERETO.

              [THE REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK.
                           SIGNATURE PAGES TO FOLLOW.]

                                      -5-
<PAGE>

         IN WITNESS WHEREOF, the parties hereto have caused this instrument to
be duly executed as of the 1st day of February, 2003.

                                              LENDER:

                                              WELLS FARGO ENERGY CAPITAL, INC.,

                                              By:   /S/ CLAYTON R. TAYLOR
                                                    Clayton R. Taylor
                                                    Vice President

                                      S-1

<PAGE>

                                      BORROWER:

                                      MOUNTAIN COMPRESSED AIR, INC.

                                      By:   /S/ MUNAWAR H. HIDAYATALLAH
                                            ------------------------------------
                                            Munawar H. Hidayatallah
                                            Chairman and Chief Executive Officer

OilQuip Rentals, Inc. hereby consents and agrees to this Amendment and agrees to
comply with and be bound by all the terms hereof.

                                      OilQuip Rentals, Inc.,
                                      a Delaware corporation

                                      By:   /S/ MUNAWAR H. HIDAYATALLAH
                                            ------------------------------------
                                            Munawar H. Hidayatallah
                                           Chairman and Chief Executive Officer

Allis-Chalmers hereby consents and agrees to this Amendment and agrees to comply
with and be bound by all the terms hereof.

                                      GUARANTOR:
                                      Allis-Chalmers Company,
                                      a Delaware corporation

                                      By:   /S/ MUNAWAR H. HIDAYATALLAH
                                            ------------------------------------
                                            Munawar H. Hidayatallah
                                           Chairman and Chief Executive Officer

                                      S-2<PAGE>
EXHIBIT 10.1

                                                                    PAGE 1 OF 12
                 BAJA CALIFORNIA DEL NORTE PROPERTY DEVELOPMENT
                             JOINT VENTURE AGREEMENT
INTRODUCTION

This JOINT VENTURE AGREEMENT made and entered into by and between U.S. West
Homes, Inc. a Nevada Corporation, hereinafter "U.S. West" whose address is 410
Broadway, Laguna Beach, CA 92651 AND LAS BRISAS DE LA MAR INC, A NEVADA
CORPORATION and Brisas de la Rivera S.A. de C.V.., a Mexican corporation
CURRENTLY BEING FORMED, hereinafter COLLECTIVELY referred to as "Las Brisas"
whose address in the United States is 3752 Lone Mesa Drive, Las Vegas, NV 89147.

WHEREAS, U.S. West owns promissory notes which are due from Senior Care
International, S.A. de C.V., a Mexican corporation, hereinafter referred to as
"SCI", that owns contracts for deed for four development projects in the State
of Baja California more fully described as:

     1.   A partially completed shopping center known as Plaza Rosarito together
          with 9 acres of ocean front undeveloped land which was formerly a polo
          field and hacienda;
     2.   Approximately 650 acres of raw land located in an area commonly known
          as the Hills of Bajamar and adjacent to the Bajamar Golf and Country
          Club;
     3.   An undivided interest in a partially completed condominium project
          known as Portal Del Mar; and
     4.   Approximately 15 acres of raw land which is zoned to be developed as
          time shares and commonly known as Plaza Resorts, and

WHEREAS, U.S. West desires to assist SCI to complete the development of these
various projects; and

WHEREAS, U.S. West has entered into a joint venture agreement with Gold Coast,
S.A. de C.V., hereinafter referred to as "Gold Coast," the owner of SCI, whereby
U.S. West shall earn 90% of the profits associated with the development of the
above referenced properties once U.S. West obtains financing for the development
of said properties, providing however, that in the event Gold Coast provides the
financing, then U.S. West shall be entitled to a 50% participation; and

WHEREAS, LAS BRISAS AND CARL HUNKING OWNER OF 100% OF THE STOCK IN LAS BRISAS DE
LA MAR, A NEVADA CORPORATION, AND BRISAS DE LA RIVERA S.A. DE C.V.desire to
become the PREDEVELOPMENT COORDINATOR AND OFF SITE AND on site developer to
undertake the Pre- development , development and completion of these various
projects in the State of Baja California; and

WHEREAS, the parties desire to execute this written agreement to govern the
conduct of the business of this Joint Venture as it relates to these particular
projects. This agreement will define the interests and responsibilities of the
parties in and to the performance of the aforementioned project and the sharing
of any profits to be derived there from or of the liability for any losses
incurred in connection therewith;

                                                                    Page 2 of 12

<PAGE>

     IT IS THEREFORE AGREED:

     NAME OF JOINT VENTURE: This Joint Venture shall be known as U.S. West/Las
     Brisas de la Mar Joint Venture."

     LOCATION OF OFFICE OF JOINT VENTURE: The principal office of the Joint
     Venture will be 3752 Lone Mesa Drive, Las Vegas, NV 89147 until such time
     as suitable offices are obtained in Tijuana, Baja California.

     TERM: The venture began on the date this Joint Venture Agreement is
     executed and shall irrevocably continue through the sale of the final unit
     of this project or until such time that the parties mutually agree to sell
     or dissolve this Joint Venture.

     DEVELOPMENT PRIORITIES: The parties agree that the properties which shall
     be developed shall be the properties listed as 1-4 above.

     Simultaneous with renovation of the partially completed shopping center, it
     is anticipated that the ocean front 9 acres across from the shopping center
     shall be developed into a suitable condominium and/or hotel project and the
     Hills of Baja Mar lots built out or sold.

PAYMENT OF POINTS & FEES FOR INVESTMENT CAPITAL: The parties agree that when any
investment capital IS raised, U.S. West shall be entitled to a 5% fee on all
money raised and LAS BRISAS shall, likewise, be entitled to a 5% fee of all
money raised, payment of this fee shall be for providing necessary support to
the fund raising endeavors of the Joint Venture. These fees shall be paid
immediately upon investment funds becoming available.

CONTRIBUTION OF JOINT VENTURE PARTNERS: LAS BRISAS shall contribute to the Joint
Venture the time, effort and expertise of its executive personnel, architects,
engineers and other designers, contractors and facilitators to assure the prompt
and timely completion of the development of the various Mexican projects
contolled by SCI in accordance with a development plan which will be jointly
promulgated by the parties hereto.

U.S. West shall contribute 100 million shares of common stock with a value not
to be less than $2,000,000. This stock shall be OWNED exclusively by Las Brisas
de la Mar, A NEVADA CORPORATION, and used BY LAS BRISAS to help pay for the
project development. UPON LAS BRISAS REQUEST OF U.S. WEST HOMES, US WEST HOMES
SHALL CONVERT ANY REQUIRED STOCK TO S8 STOCK SO LAS BRISAS CAN USE IT TO PAY FOR
PROJECT DEVELOPMENT. The voting rights to the stock shall be vested with the
Board of U.S. West through an irrevocable proxy granting said voting rights to
the Board or a Board appointee. Gold Coast shall provide an irrevocable $175,000
credit line to the joint venture to HELP pay for all professional,
architectural, engineering Las Brisas management, design fees and consulting
fees as may be necessary to develop the properties and obtain necessary permits,
providing however, that U.S. West may, in appropriate circumstances pay these
professionals and consultants in common stock which U.S. West shall register on
Form S-8 from time to time as necessary. S-8 stock issued shall be reimbursed to
U.S. West by a return to U.S. West of a like number of shares of common stock
out of the shares contributed by U.S. West referenced herein. U.S. West shall
additionally finance entitlements, post closing obligations and other
development costs, and AN ACCEPTABLE SETTLEMENT WITH BERSAINNE GUTIERREZ all of
which said fund advances shall be considered a loan to the joint venture to be
repaid at such time as sufficient cash is available to fund the repayment or
partial repayment, as the case may be either from the proceeds of sales or from
construction loans or syndication, whichever may first occur.

                                                                    Page 3 of 12
<PAGE>

The stock shall be issued to Las Brisas De La Mar INC., A NEVADA CORPORATION, on
the date this agreement is signed. At the date of Bersain Guitierez signing an
Agreement satisfactory to U.S. West Homes whereby he joins this joint venture
AND/ OR AGREES TO A FUTURE TRANSFER of his interest OR SELL AN OPTION ON HIS
INTEREST in the above referenced properties to SCI, M&A Underwriters has
separately agreed that it shall mark the promissory note collateralized by the
$25,000 trust deed held on Lynn Kinzies Rainbow, California property paid in
full and shall immediately reconvey the deed of trust BY CARL HUNKING OR ASSIGN
IT TO WHOMEVER CARL HUNKING DESIGNATES. Payments shall be made thereafter on the
monthly signing anniversary of Bersain Guitierez joining the joint venture and
be in the amount of $6,000 per month payable in S-8 stock to Carl Hunking, Carl
Hunking shall have until April 3, 2003 to obtain the Bersain Guitierez signature
and shall be issued $6,000 of S-8 stock for said period, PAID AT THE SAME TIME
CARL HUNKING SIGNS THIS AGREEMENT, after which no payments shall be made until
the Bersain Guitierez signature is obtained. After said signature is obtained,
Carl Hunking shall be issued $6,000 per month in S-8 stock. All S-8 stock issued
to Carl Hunking shall be reimbursed to U.S. West by a return to U.S. West of a
like number of shares of common stock out of the shares contributed by U.S. West
to the joint venture as referenced in the "Contribution of Joint Venture
Partners" section of this Agreement. All stock issued to Carl Hunking after
receipt of the Bersain Guitierez signature shall be considered draws against Las
Brisas de la Mars 50% interest in the J.V. and be accounted for as such upon
distribution of profits. U.S. WEST GUARANTEES THAT IF THE S8 STOCK CANNOT BE
SOLD PRIOR TO THE END OF EACH 30 DAY PERIOD THEY SHALL PAY CARL HUNKING THE
UNSOLD STOCK AMOUNT IN CASH WITHIN 3 WORKING DAYS.

DUTIES OF JOINT VENTURE PARTNERS: To the extent available, each party shall
furnish to the joint venture such skill, knowledge and experience as may be
required to perform its business efficiently and expeditiously. No party shall
make any charge therefore against the joint venture for any time expended unless
mutually agreed. The parties agree that their respective duties to this entity,
for which they shall be generally as follows:

LAS BRISAS shall with the assistance, advise and consent of SCI be responsible
to complete the construction of Plaza Rosarito, development of the ocean front
site, arrangement for all necessary architectural, engineering and other
entitlements which may be necessary to record planned urban development plans
for the Hills of Bajamar, to arrange for site improvements and to coordinate the
sales of lots on the Hills of Bajamar.

On each of the anticipated projects, LAS BRISAS shall be responsible for the
following:

     (1)  Selection of the design team and approval of all floor plans;
     (2)  Soliciting bids from general contractors;
     (3)  Review and approval AND MANAGEMENT of the construction budget;
     (4)  Pricing of the units and marketing necessary to attract the requisite
          numbers of buyers;
     (5)  Arranging for required appraisals of land and properties
     (6)  Interfacing with tenants and condominium owners at Porta Del Mar;
     (7)  Soliciting and arranging for a joint venture with a time share
          developer on Plaza Resorts;
     (8)  Evaluation of the floor plans and coordination of the design team to
          ensure accurate drawings;
     (9)  Distribution of the plans to the various subtrades for the purpose of
          securing pricing;
     (10) Finalizing the construction budget;
     (11) Furnishing all construction management, contract administration,
          subcontractor coordination, on site supervision, equipment, material,
          and labor necessary to construct and complete the projects in a good
          workmanlike and substantial manner.

                                                                    Page 4 of 12
<PAGE>

The parties shall work together to obtain all necessary investment funds and/or
loans, as the case may be, to finance the completion of each project.

LAS BRISAS shall engage and the Joint Venture shall pay necessary attorneys to
provide all legal documentation including partnership agreements, subscription
agreements and other documentation necessary and appropriate when arranging for
investment funds and/or loans.

When necessary, LAS BRISAS shall be responsible to obtain required updated
appraisals to substantiate "as is" value of the property. The Joint Venture
shall pay for any appraisals thus obtained.

U.S. West AND LAS BRISAS shall have the right to issue suitable press releases
at such times as may be necessary to publicize the project, provided however,
that U.S. West shall not have any obligation to issue an initial press release.
EITHER PARTY MAY RECORD THIS AGREEMENT AGAINST THE PROPERTIES.

SPONSOR/MANAGING PARTNER: LAS BRISAS shall nominate a person from its executive
staff to be the sponsor/managing partner of the project and shall have direct
charge over the supervision of all matters necessary to and connected with the
performance of the construction. Decisions related to the design and phasing
shall be made jointly.

JOB COSTS: The following rules shall prevail in determining job costs under this
agreement:

At no cost to the venture, each member and their office staff shall fulfill
their responsibilities listed above, issue correspondence, do accounting,
processing and other work done in the ordinary course of business. Corporate
stationery, forms, checks, etc., shall be purchased as job costs.

Expenses prior to execution of this agreement will be the responsibility of the
individual participants, except those specific expenses relating to the actual
work or preparation thereof shall be a job cost to the extent mutually agreed
upon by the parties.

It is assumed that each construction subcontractor will supply their own tools
and equipment, therefore the purchase of tools and equipment shall not be
considered a job cost. It is understood, however, that the rental of tools and
equipment will from time to time be a necessary job cost.

Home office expenses of each participant are to be absorbed by each individual
participant. Long distance telephone calls related to the job from either office
shall not be charged as a job expense.

PERSONNEL: LAS BRISAS shall provide to the project a qualified project
superintendent and project manager who will be responsible for managing all
aspects of the day-to-day construction of the project, including but not limited
to, scheduling and hiring of foremen and construction trade personnel.
Compensation of the management budget, project superintendent, project manager
and design and engineering staff shall be charged to the project as a job cost.
Any bonus paid to employees of either corporate party shall not be considered a
job cost.

MANAGEMENT BUDGET: The parties shall establish a management budget to pay for
office space, phones, wages, marketing brochures, marketing programs and other
necessary items which may be determined as being in the best interest of the
Joint Venture.

                                                                    Page 5 of 12
<PAGE>

FEES TO BE PAID:   The Joint Venture will pay for the following:

     1.   all required building permits;
     2.   assessments and charges required by public agencies and utilities for
          financing or repaying the cost of sewers, storm drains, water
          services, and other utilities, including sewer and storm drain
          reimbursement charges, revolving fund charges, hook-up charges, and
          the like;
     3.   assessments and charges required by public agencies and utilities for
          financing or repaying the cost of sewers, storm drains, water
          services, and other utilities, including sewer and storm drain
          reimbursement charges, revolving fund charges, hook-up charges, and
          the like.
     4.   all real estate taxes and special assessments related to the property.

PAYMENT FOR CONSTRUCTION COSTS: From the construction funds distributed, LAS
BRISAS shall receive:

     1)   Payment for hard costs which represents all labor, material,
          equipment, delivery, and installation for all subtrades necessary to
          construct the project as specified which he in turn, shall distribute
          to the general contractor and other sub-contractors as the case may be
          and as may be necessary to comply with construction contracts;
     2)   An amount determined which shall be set as side from the hard costs,
          for general requirements. This amount shall be paid according to the
          percentage of completion consistent with the progress payments as
          detailed below.

The final construction costs of the project will be finalized upon the issuance
of the final city/county approved construction set of plans. The joint venture
partners shall both approve the final total amount of the hard costs before this
agreement has any force or effect.

PROGRESS PAYMENTS: Based upon Applications for Payment submitted by LAS BRISAS
to the joint venture OVER AND ABOVE THE ADVANCE DRAWS DESCRIBED IN "CONTRIBUTION
OF JOINT VENTURE PARTNERS", the joint venture shall make progress payments on
account of the contract as provided below and elsewhere in this agreement.

The period covered by each Application for Payment shall be one calendar month
ending on the last day of the month, or as follows:

     3)   Provided that an Application for Payment is received by LAS BRISAS not
          later that the 5th day of a month, the joint venture shall make
          payment to LAS BRISAS not later than the 25th day of the same month.
          If an Application for Payment is received by LAS BRISAS after the
          application date fixed above, payment shall be made by LAS BRISAS not
          later than 20 days after the Application for Payment is received.

     4)   Each Application for Payment shall be based on the most recent
          schedule of values submitted by LAS BRISAS in accordance with this
          agreement. The schedule of values shall allocate the entire contract
          sum among the various portions of work. The schedule of values shall
          be prepared in such form and supported by such data to substantiate
          its accuracy. This schedule shall be used as a basis for reviewing LAS
          BRISAS's Application for Payment.

     5)   Applications for Payment shall indicate the percentage o completion of
          each portion of the Work as of the end of the period covered by the
          Application for Payment.

     6)   The amount of each progress payment shall be computed as follows:

                                                                    Page 6 of 12
<PAGE>

Take that portion of the construction budget sum properly allocable to completed
work as determined by multiplying the percentage completion of each portion of
the work by the share of the construction budget allocated to that portion of
the work in the schedule of values, less retention of ten percent (10%).

Barring any claim for unfinished work by owner, payment of retention for each
subcontractor shall be made 35 days after notice of completion has been
recorded, provided that the joint venture may withhold from the final payment an
amount to protect LAS BRISAS and/or his general contractor against mechanic's
liens that may have been recorded or threatened before payment of the retention
is due.

LAS BRISAS's equity participation does not include any hard costs of
construction. All construction hard costs shall be paid to LAS BRISAS in
accordance with this clause. If corrective or repair work remains to be
accomplished after the building is ready for occupancy, owner, pending
completion of such work may withhold payment of a sufficient amount to pay for
it.

The fact that the joint venture has made progress payments under this agreement
will not be interpreted so as to imply that the work has inspected or approved
the work performed by LAS BRISAS. Progress payments do not constitute approval
of the work.

SUBCONTRACTOR'S AND SUPPLIER'S MECHANIC'S LIEN RELEASE: No payments will be made
to the contractor until the contractor has furnished mechanic's lien releases in
proper statutory form signed by all subcontractors, sub-subcontractors, and
material suppliers who have performed work or furnished materials to the job,
releasing all lien rights for work performed and materials furnished through the
date to which the progress payment applies. Owner reserves the right to make
payments by joint check, or to make direct payment to mechanics' lien claimants
and deduct the amounts so paid from the contract price.

EQUITY PARTICIPATION AND PROFIT DISTRIBUTION: The parties to this joint venture
shall share an any profits generated by the joint venture in the following
manner:

     1.   Any liens and/or preferred payments to persons and/or entities who
          provided funds to Tri-National Development and to whom SCI agreed to
          make payments from sale proceeds shall first be paid; and thereafter

     1.   Investors who have invested funds for the completion of the projects
          shall realize their return on investment; and thereafter

     2.   Investors who have invested funds for the completion of the projects
          shall realize the return of their initial investments; and thereafter

     3.   Payments to the holders of Senior Care Industries, Inc. Series F
          preferred stock which was used to purchase properties listed on the
          first page of this Agreement shall be made in cash or stock no later
          than, or prior to, the redemption date provided in the terms of the
          Series F stock certificate; and thereafter UNLESS RENEGOTIATED TO
          BENEFIT THE JOINT VENTURE.

     4.   Profits after payment of all of the above shall be split evenly
          between SCI and LAS BRISAS INCLUDING THE RECEIPT OF PAYMENT FROM
          AND/OR THE REDUCTION OR PAYOFF OF THE EXISTING PROMISSORY NOTES
          BETWEEN THE OWNERS OF (SCI), GOLD COAST S.A. DE C.V. AND U.S WEST
          HOMES INC. AND ANY NEGOTIATED SAVINGS OR REDUCTIONS IN THE SCI-TRI
          NATIONAL ORIGINAL SERIES F STOCK AND THE PROMISSORY NOTES THEY
          ACCOMMODATE.

                                                                    Page 7 of 12
<PAGE>

PAYMENT OF COMMISSIONS AND FEES ON SALES: LAS BRISAS shall receive a commission
of 12% on all land sales, 10% on home sales, 45% on all time share sales, and
10% on condominium sales of the sale price from which he shall be responsible to
pay all real estate brokers and sales persons.

REIMBURSEMENT TO VENTURERS: All reimbursements made to either party for
services, supplies or equipment furnished the venture by either of the parties
shall be made only upon presentation of itemized statements by the party
receiving the reimbursement. Each party shall keep detailed records of all
materials, supplies, tools, equipment, labor and services furnished by it to the
venture. Such records shall be made available for inspection by the other party
and its representatives and agents at any reasonable time.

DATE OF COMMENCEMENT AND SUBSTANTIAL COMPLETION: The date of commencement of the
work shall be fixed in a notice to proceed issued by the joint venture. If,
prior to commencement of the work the owner requires time to file mortgages,
mechanic's liens and other security interests, SCI will provide timely notice to
LAS BRISAS, if required. LAS BRISAS shall commence work ten (10) days after such
notice.

The contract time shall be measured from the date of commencement as fixed in
the notice issued by the owner. The contractor shall achieve Substantial
Completion of the entire work on a timely basis from the date of commencement
and in accordance with a detailed construction and production schedule which may
be attached to this agreement as an exhibit or as determined in writing by the
parties and attached hereto as a Modification and/or Addendum.

INDEPENDENT INVESTIGATION: LAS BRISAS has made in independent investigation of
each of the job sites, and the soil conditions under the job site, and all other
conditions that might affect the progress of the work, and has satisfied itself
as to those conditions. And information that owner may have furnished to
contractor about the job site, underground conditions or other job conditions is
for contractors convenience only, and owner does not warrant that the conditions
are as thus indicated. Contractor has satisfied itself by its own investigation
as to all job conditions, including underground conditions, and has not relied
on information furnished by owner. Contractor shall receive equitable
adjustments to the contract amount for unforeseeable or unanticipated site
conditions.

TIME IS OF ESSENCE BEFORE PROGRESS OF WORK: Time is of the essence of this
agreement. If LAS BRISAS is unable to supply a general contractor who can in
turn, supply sufficient men, material, supplies, and equipment to achieve
scheduled completion, the SCI shall give written notice to LAS BRISAS, which
notice shall require that LAS BRISAS immediately make arrangements for the
general contractor of the sub-contractor as the case may be, to supply
sufficient men, supplies, materials, and equipment to diligently prosecute of
the work within 48 hours after such notice is delivered, SCI may eject the
contractor from the job, take over all supplies, equipment, and material of the
contractor on the job site, and either obtain another contractor to finish the
project or finish the project with its own forces. In such event, the contractor
shall be liable to the owner for damages, including but not limited to the full
cost of completing the project.

                                                                    Page 8 of 12
<PAGE>

DELAY: LAS BRISAS and his general contractor and/or sub-contractors shall be
excused for any delay in completion of the contract caused by acts of God, acts
of SCI of SCI's agent, labor trouble, acts of public utilities, public bodies,
or inspections, extra work, failure of the owner to make progress payments
promptly, or other contingencies unforeseen by the contractor and beyond the
reasonable control of LAS BRISAS.

COMPLETION AND OCCUPANCY: SCI agrees to sign and record a notice of completion
within five (5) days after completion of the project. If the project passes
final inspection by the public agency but the owner fails to record a notice of
completion, owner hereby appoints contractor as owner=s agent to sign and record
a notice of completion on behalf of the owner. This agency is irrevocable and is
an agency coupled with an interest.

DAMAGE TO PROJECT, INSURANCE: SCI will procure as its own expense, and before
commencement of any work hereunder, a broad form all risk policy of insurance,
including coverage for flood and earthquake, at least equal to the contract
price, with such insurance to name the contractor and all subcontractors as
additional insurers, and to protect owner, contractor, and all subcontractors as
their interests may appear, with loss payable to the owner for the benefit of
the owner, contractor and subcontractors. Owner will, as named insured, properly
process claims with the carrier for the benefit of the owner, contractor, and
subcontractors. Should owner fail so to do, contractor may procure such
insurance as agent for and at the expense of owner, but contractor is not
required to do so. Owner shall, upon request, furnished a copy of the policy to
the contractor.

If the project, or any part of it, is destroyed or damaged by accident,
disaster, or calamity, such as fire, storm, flood, landslide, subsidence,
earthquake, or vandalism, any work done by contractor or subcontractor in
rebuilding or restoring the project shall be paid for as extra work, for which
contractor shall receive equitable compensation from owner.

FORM; CONFLICT BETWEEN CONTRACT DOCUMENTS: If there is any conflict between
contract documents as to materials, equipment, or work to be performed or
furnished, the contractor will bring the conflict to the attention of the owner
and a mutual resolution will be negotiated.

NOTICES: Any notice required or permitted under this contract may be given by
ordinary mail at the address contained in this contained in this contract, and
such address may be changed by written notice given by one party to the other
from time to time. Notice shall be deemed received one (1) day after deposited
in the mail, postage prepaid.

                                                                    Page 9 of 12
<PAGE>

ACTS REQUIRING MUTUAL CONSENT: No party shall without the written consent of the
other members, assign, mortgage, grant a security interest in, or sell its share
in the Corporation or in its capital assets or property, or enter into any
agreement, as a result of which any person shall become interested with it in
the corporation; or do any act detrimental to the best interests of the
corporation, or which would make it impossible to carry on the ordinary
business.

ASSIGNMENT OF INTEREST: No party shall sell, assign or in any way transfer its
interest or any part thereof in this agreement without first obtaining the
written consent of each member. Any attempted sale, assignment or transfer in
violation of the provisions of this paragraph shall be void. SCI agrees at this
time to allow LAS BRISAS to assign his interest one time to a corporation
provided, however, that LAS BRISAS shall retain a stockholder interest in the
corporation of at least 51%. If SCI sells its interest in the land, SSCC shall
be compensated according to the work completed and all rights held by LAS BRISAS
and/or his assigns hereunder, shall extend to the new owner.

CONDUCT OF OTHER BUSINESS: All parties hereto shall be free to carry on their
respective businesses independent of the others and no party shall have any
right in or claim against the business of the others on any contract other than
the aforementioned development.

DISSOLUTION OF THE JOINT VENTURE: Upon the approval of a dissolution of this
joint venture, each member shall release the other from any and all further
liability hereunder. Except, however, as to such lawful liability, and necessary
expense in connection with the contesting thereof, as may be asserted
subsequently under this agreement or as a result thereof and for which the
parties hereto would have been liable prior to the execution of such release.

CLAIMS AGAINST VENTURE OR PARTIES: If at any time any third party claim growing
out of any work or any contract connected with or related to the financing,
development, construction, or sale shall be made against any party hereto,
written notice thereof shall be given promptly to the other parties. All
expenses of contesting or discharging any such claims, including attorney fees,
shall be borne by each individual party. No compromise of any such claim
affecting the parties hereto shall be made without the written consent of the
other parties.

BONDING: If necessary, the parties shall from time to time execute such
applications for bonds, indemnity agreements and other documents and papers as
may be necessary to provide for the performance of such development and
construction. Provided, however, that the liability of each of the parties
hereto under any agreement to indemnify a surety company or companies shall be
borne by each party.

INSOLVENCY: If LAS BRISAS becomes insolvent, or makes a controlling interest
assignment for the benefit of creditors, SCI has the right to cancel this
contract and have the work completed by others.

DISPUTES: In the event of any dispute between the owner and the contractor as to
the work to be done, under this contract, the payments to be made, or the manner
of accomplishment of the work, the contractor shall nevertheless proceed to
perform the work as directed by the owner pending settlement of the dispute, as
long as the owner continues to make progress payments. The contractor would be
required to he ahead and finish the job and file suit or demand arbitration to
resolve the dispute.

                                                                   Page 10 of 12
<PAGE>

INDEMNITY: LAS BRISAS will indemnify SCI against all claims, demands, and
liability for damages for the death or bodily injury to persons or property
damage and caused by or related to performance of the work by contract or any
subcontractor of any tier. The obligation to indemnify shall be effective even
if active or passive negligence or misconduct of the owner contributes to the
loss or claim. This indemnity will not extend to claims, demands, liability, or
expense arising out of the sole negligence or sole willful misconduct of the
owner.

ARBITRATION: Any controversy arising out of relating to the performance or
interpretation of their contract or any subcontract or sub-subcontract is
subject to arbitration. Owner, contractor, and all subcontractors,
sub-subcontractors, material suppliers, and other parties concerned with the
construction of the project are bound, each to the other, by this arbitration
clause, provided the party has signed this contact or has signed a document that
refers to or incorporates this contract by reference, or signs any other
agreement to be bound by this arbitration clause.

On the demand of the arbitrator or any party to the arbitration initiated under
the arbitration provisions of this contract, owner, subcontractor,
sub-subcontractor, or any other party bound by this arbitration provision agrees
to join in, become a party to, and be bound by such arbitration proceedings.

Arbitration shall be conducted in accordance with Construction Industry Rules of
the American Arbitration Association that are in effect at the time of the
arbitration, and judgment may be entered on the award. Evidence presented at the
arbitration shall admitted or denied be subject to the California Evidence Code.

If any party refuses or neglects to appear at or to participate in arbitration
proceedings after reasonable notice, the arbitrator is empowered to decide the
controversy in accordance with whatever evidence is presented by the party or
parties who do participate. The arbitrator may award any remedy that is just and
equitable in the opinion of the arbitrator. The arbitrator will award to the
prevailing party or parties such sums as are proper to compensate for the time,
expense and trouble of arbitration, including arbitration fees and attorney
fees, not to exceed ten thousand dollars ($10,000.00). The arbitrator will
remain jurisdiction of a controversy even if a party or parties to the dispute
will not or cannot be joined in the arbitration proceedings.

ATTORNEY'S FEES: If the parties become involved in litigation or arbitration
arising out of this contract or the performance thereof, the court or arbitrator
shall award reasonable costs and expense, including attorney's fees, to the
prevailing party, not to exceed ten thousand dollars ($10,000.00).

FULLY INTEGRATED AGREEMENT: The terms and provisions of this Contract and all of
the attachments, schedules and exhibits hereto constitute the entire and fully
integrated agreement between the parties. It supersedes all previous
communications, representations, agreements, proposals, terms and negotiations
either written or oral, between the parties relating to the subject matter
hereof. Any changes, additions, deletions, amendments or addenda to or
modifications or corrections of this Contract (including all attachments,
schedules and exhibits hereto) or any other agreement between the parties shall
be null and void unless the same be in writing and signed by both Contractor and
Subcontractor.

GOVERNING LAW: This agreement shall be construed in accordance with, and
governed by, the laws of the State of California. This paragraph does not
prevent the application of the Federal Arbitration Act to any disputes that may
arise under this contract

                                                                   Page 11 of 12
<PAGE>

VENUE & SITUS OF CONTRACT: The place of this agreement, its situs or forum is at
all times in the state of California in which state all matters, whether
sounding in contract or in tort relating to the validity, construction,
interpretation and enforcement of this contract, shall be determined. Each of
the parties to the Agreement hereby consents to the venue and jurisdiction of
the Superior Court of the State of California in and for the County of Orange.

SEVERABILITY: If any term, provisions, covenant or condition of this Agreement
is held by a court of competent jurisdiction to be invalid, void or
unenforceable, the rest of the Agreement shall remain in full force and effect
and shall in no way be affected, impaired or invalidated.

BENEFIT: This Agreement shall inure to the benefit of, and be binding upon, the
parties hereto, their successors, trustees, assigns, heirs, administrators and
legal representatives, but shall not inure to the benefit of any other person,
firm or corporation.

COUNTERPARTS: This Agreement may be signed in counterparts and all signed copies
shall be deemed one instrument. ALL PARTIES WARRANT THEY HAVE THE AUTHORITY TO
SIGN AND ASSIGN OR ENFORCE ANY PLEDGES OR AGREEMENTS MADE BY AND BETWEEN THEM ON
BEHALF OF THIRD PARTIES TO THIS AGREEMENT I.E. U.S. WEST HOMES FOR SCI
UNDERWRITERS. THIS AUTHORITY THEY BELIEVE IS GRANTED TO THEM DUE TO OTHER
AGREEMENTS ALREADY SIGNED WHICH ARE ATTACHMENTS TO THIS AGREEMENT.

<PAGE>

IN WITNESS WHEREOF the parties have executed this instrument this ___ day of
________, 2003, in the City of , California

Date: ___________________
Brisas de la Rivera S.A. de C.V.

By: /s/ Carl Hunking                    By: /s/ Cark Hunking
    --------------------------              --------------------------------
    Carl Hunking                            Carl Hunking
    President                               Las Brisas De La Mar, a Nevada Corp.

U.S. West Homes, Inc.
M&A Underwriters

By: /s/ Mervyn A. Phelan, Sr.           By: /s/ Mervyn A. Phelan, Jr.
    ---------------------------             -------------------------------
    Mervyn A. Phelan, Sr.                   Mervyn Phelan Jr.

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