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                                                                   EXHIBIT 10.15

                                                                  EXECUTION COPY

                   FIRST AMENDMENT TO THE EMPLOYMENT AGREEMENT

          This First Amendment (this "AMENDMENT"), dated as of May 26, 1999 to
the certain Employment Agreement (the "EMPLOYMENT AGREEMENT") dated as of
February 4, 1998 between ICM Equipment Company L.L.C. (the "COMPANY") and
Kenneth Sharp, Jr. (the "EMPLOYEE").

     WHEREAS, the Company and the Employee (collectively, the "PARTIES") desire
to amend the Employment Agreement on the terms and conditions set forth herein.

     NOW THEREFORE, in consideration of the mutual agreements set forth herein,
the Parties agree as follows:

     1.   CAPITALIZED TERMS. Capitalized terms used herein without definition
shall have the meanings ascribed to such terms in the Employment Agreement.

     2.   DUTIES AND EXTENT OF SERVICE. The following sentence is added to the
end of Article II of the Employment Agreement:

     "So long as Employee shall serve the Company as its Executive Vice
     President, Employee shall also serve as a member of the Board of Directors
     of the Company."

     3.   DEFINITIONS. For purposes of this Amendment, the following terms have
the following meanings:

     "CLASS A PREFERRED UNITS" means (i) the Class A Preferred Units (as such
term is defined in the LLC Agreement) or (ii) any equity securities issued with
respect to the Class A Preferred Units referred to in clause (i) above by way of
any recapitalization, merger, consolidation or other reorganization of the
Company, including pursuant to Section 12.17 of the LLC Agreement.

     "HIGH YIELD DEBT OFFERING" means the consummation of either (i) a public
offering and sale of debt securities of the Company pursuant to an effective
registration statement under the Securities Act resulting in net proceeds to the
Company of at least $100,000,000 or (ii) an offering and sale of debt securities
of the Company to United States buyers who fit the requirements of Rule 144A of
the Securities Act of 1933, as amended (the "SECURITIES ACT") and/or overseas
buyers under Regulation S of the Securities Act resulting in net proceeds to the
Company of at least $100,000,000, but only if such offering and sale requires
that the Company file and effect a registration statement under the Securities
Act for such debt securities within one year after the consummation of such
offering and sale.

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     "LLC AGREEMENT" means the Amended and Restated Limited Liability Company
Agreement of the Company, dated as of the date hereof, as amended from time to
time.

     "TERM A PERCENTAGE" means, at any time, a percentage equal to (i) 1,256.863
(such number to be appropriately adjusted for any unit or stock split, reverse
unit or stock split, stock or unit dividend or other distribution or other
subdivision or combination of Class A Preferred Units after the date hereof)
DIVIDED BY (ii) the sum of (x) the total number of Class A Preferred Units
outstanding as of such time PLUS (y) 1,256.863 (such number to be appropriately
adjusted for any unit or stock split, reverse unit or stock split, stock or unit
dividend or other distribution or other subdivision or combination of Class A
Preferred Units after the date hereof).

     4.   DEFERRED SIGNING BONUS. Section 4.01 of the Employment Agreement is
hereby amended by deleting Section 4.01 thereof as in effect immediately prior
to the date hereof in its entirety (the "DELETED SECTION 4.01") (and the
Employee hereby releases the Company from all obligations arising under the
Deleted Section 4.01) and replacing it with the following restated Section 4.01
(including the definitions contained in paragraph 3 hereof):

     "SECTION 4.01.  DEFERRED SIGNING BONUS.

     (a)  In consideration for entering into this Agreement, on May 26, 1999,
(x) the sum of $1,256,863 (which is in addition to and not part of the sums
identified in Article III) shall be credited to a deferred compensation account
(the "TRANCHE A ACCOUNT") and (y) $243,137 PLUS $206,404.34, which represents
accrued interest as of May 26, 1999, (which is in addition to and not part of
the sums identified in Article III) shall be credited to a deferred compensation
account (the "TRANCHE B ACCOUNT"; and collectively with the Tranche A Account,
the "ACCOUNTS"), in each case, on the books and records of the Company on behalf
of the Employee.

     (b)  INTEREST ACCRUALS.

          (i)   So long as a balance remains in the Tranche A Account, the
     Tranche A Account shall be credited on each March 1, June 30, September 30
     and December 31 (each, a "TRANCHE A INTEREST ACCUMULATION DATE") with an
     amount of interest to be calculated at the rate of ten percent (10%) per
     annum (computed on the basis of a 360-day year and the actual number of
     days elapsed in any year) on the balance in the Tranche A Account during
     the three-month period ending on such Tranche A Interest Accumulation Date
     (a "TRANCHE A INTEREST CREDIT"); PROVIDED that upon and as of the
     occurrence of a High Yield Debt Offering, the interest rate on the Tranche
     A Account shall immediately and permanently be increased to the rate of
     thirteen percent (13%) per annum (computed on the basis of a 360-day year
     and the actual number of days elapsed in any year).

          (ii)  So long as a balance remains in the Tranche B Account, the
     Tranche B Account shall be credited on each March 31, June 30, September 30
     and December 31 (each, a "TRANCHE B INTEREST ACCUMULATION DATE") with an
     amount of interest to be calculated at the rate of ten percent (10%) per
     annum (computed on the basis of a 360-day year and the actual

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     number of days elapsed in any year) on the balance in the Tranche B Account
     during the three month period ending on such Tranche B Interest
     Accumulation Date (a "TRANCHE B INTEREST CREDIT").

     (c)  Subject to this Article IV, on February 4, 2006, the Company shall
distribute to the Employee, from the Accounts, a cash payment in an amount equal
to the then balance in the Accounts (plus any accrued but uncredited interest);
PROVIDED, that, notwithstanding the foregoing:

          (i)   If at any time the Company makes a cash distribution to the
     holders of the Class A Preferred Units (other than distributions pursuant
     to Section 7.3 of the LLC Agreement), then immediately following such
     distribution, the Company shall distribute to the Employee, from the
     Tranche A Account, a cash payment in an amount equal to the lesser of (x)
     the then balance in the Tranche A Account (plus any accrued but uncredited
     interest) and (y) (i) the amount of such cash distribution to the holders
     of the Class A Preferred Units MULTIPLIED BY (ii) the Term A Percentage at
     such time. On June 1, 2000, if a High Yield Debt Offering has not
     previously occurred, then this Section 4.01(c)(i) shall terminate and be of
     no further force or effect.

          (ii)  Immediately following a High Yield Debt Offering, the Company
     shall distribute to the Employee, from the Tranche B Account, a cash
     payment in an amount equal to the then balance in the Tranche B Account
     (plus any accrued but uncredited interest).

     (d)  Payments from the Accounts by the Company to the Employee are
expressly not contingent on the Employee's continuing employment with the
Company for any period of time or, except for the provisions of this Article IV,
his fulfillment of any provision of this Agreement. The amounts credited to the
Accounts and any Tranche A Interest Credit or Tranche B Interest Credit are
collectively referred to herein as the "DEFERRED COMPENSATION".

     (e)  CURRENT PAYMENT ELECTIONS.

          (i)   The Employee may elect in accordance with this Section
     4.01(e)(i) (a "TRANCHE A PAYMENT ELECTION") to have the Tranche A Interest
     Credit for the four quarters of the following year paid to him in cash on
     the last day of each such quarter, in which case the Tranche A Account
     shall not be credited with such Tranche A Interest Credit. A Tranche A
     Payment Election shall be valid only if delivered to the Company by the end
     of the calendar year preceding the year which is the subject of the Tranche
     A Payment Election. Any Tranche A Payment Election shall remain in effect
     until revoked, provided that the Tranche A Payment Election cannot be
     revoked (x) for the year immediately following the year in which delivered
     and (y) during any subsequent year if notice of revocation is not delivered
     to the Company during the preceding year. Upon and as of the occurrence of
     a High Yield Debt Offering, this Section 4.01(e)(i) shall automatically
     terminate and be of no further force or effect, the Employee shall not be
     entitled to make any Tranche A Payment Election for any period beginning on
     or after the date of the occurrence of such High Yield Debt Offering and
     any Tranche A Payment Election made by the Employee with respect to any
     period beginning

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     on or after the date of the occurrence of such High Yield Debt Offering
     shall be deemed to be void.

          (ii)  The Employee may elect in accordance with this Section
     4.01(e)(ii) (a "TRANCHE B PAYMENT ELECTION") to have the Tranche B Interest
     Credit for the four quarters of the following year paid to him in cash on
     the last day of each such quarter, in which case the Tranche B Account
     shall not be credited with such Tranche B Interest Credit. A Tranche B
     Payment Election shall be valid only if delivered to the Company by the end
     of the calendar year preceding the year which is the subject of the Tranche
     B Payment Election. Any Tranche B Payment Election shall remain in effect
     until revoked, provided that the Tranche B Payment Election cannot be
     revoked (x) for the year immediately following the year in which delivered
     and (y) during any subsequent year if notice of revocation is not delivered
     to the Company during the preceding year."

     (f)  The parties hereto acknowledge and agree that amounts "credited" to
any Account means only that the Company will reflect such amounts on its book
and records and does not mean that the Company will transfer any cash to any
account or otherwise set aside or transfer any cash.

     5.   NOTICE. The phrase

          "TO THE COMPANY:

                ICM Equipment Company, Inc.
                c/o Ripplewood Holdings L.L.C.
                712 Fifth Avenue (49th Floor)
                New York, NY 10019
                Attention: John Duryea"

referred to in Section 11.01 is hereby amended to read as follows:

          "TO THE COMPANY:

                ICM Equipment Company L.L.C.
                c/o Bruckmann, Rosser, Sherrill & Co., Inc.
                126 East 56th Street, 29th Floor
                New York, NY 10022
                Attention: Bruce Bruckmann and
                           Rice Edmonds
                Tel: (212) 521-3700
                Fax: (212) 521-3799"

     6.   GOVERNING LAW. This Amendment shall be governed by and construed in
accordance with the laws of the State of Utah (without reference to its rules as
to conflicts of law).

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     7.   COUNTERPARTS. This Amendment may be executed in any number of
counterparts, each of which shall be deemed an original, but all of which
together shall constitute a single instrument.

     8.   AGREEMENT. In all other respects the Employment Agreement is ratified
and shall, as so changed by these amendments, continue in full force and effect.

     9.   NO STRICT CONSTRUCTION. The Parties have participated jointly in the
negotiation and drafting of this Agreement. In the event that an ambiguity or
question of intent or interpretation arises, this Agreement shall be construed
as if drafted jointly by the parties hereto, and no presumption or burden of
proof shall arise favoring or disfavoring any party by virtue of the authorship
of any provisions of this Agreement.

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     IN WITNESS WHEREOF, the Parties have executed this Amendment as of the date
first set forth above.

                                        ICM EQUIPMENT COMPANY L.L.C.

                                        By:  /s/ Gary Bagley
                                            ------------------------------------
                                            Name: Gary Bagley
                                            Title: President & CEO

                                         /s/ Kenneth Sharp, Jr.
                                        ----------------------------------------
                                        KENNETH SHARP, JR.<Page>

                                                                  EXHIBIT 10.16

                                                                  EXECUTION COPY

                  SECOND AMENDMENT TO THE EMPLOYMENT AGREEMENT

          This Second Amendment (this "AMENDMENT"), dated as of December 6,
1999, to the certain Employment Agreement dated as of February 4, 1998 between
ICM Equipment Company L.L.C. (the "COMPANY") and Kenneth Sharp, Jr. (the
"EMPLOYEE"), as amended by the First Amendment to Employment Agreement, dated as
of May 26, 1999, between the Company and the Employee (such Agreement, as
amended by the First Amendment to the Employment Agreement, the "EMPLOYMENT
AGREEMENT").

     WHEREAS, the Company and the Employee (collectively, the "PARTIES") desire
to amend the Employment Agreement on the terms and conditions set forth herein.

     NOW THEREFORE, in consideration of the mutual agreements set forth herein,
the Parties agree as follows:

     1.   CAPITALIZED TERMS. Capitalized terms used herein without definition
shall have the meanings ascribed to such terms in the Employment Agreement.

     2.   DEFERRED SIGNING BONUS. Section 4.01 of the Employment Agreement is
hereby amended by deleting the last sentence of Section 4.01(c)(i).

     3.   ACKNOWLEDGMENT OF SUBORDINATION. Reference is hereby made to the Note
and Common Unit Acquisition Agreement, dated as of December 6, 1999 (the
"ACQUISITION AGREEMENT") among the Company, BRS Equipment Company, Inc., Don
Wheeler and Southern Nevada Capital Corporation. The Employee hereby irrevocably
acknowledges and agrees that all principal, interest and all other amounts
payable under or in respect of the Notes (as such term is defined in the
Acquisition Agreement) are "Senior Indebtedness" for purposes of the Employment
Agreement.

     4.   GOVERNING LAW. This Amendment shall be governed by and construed in
accordance with the laws of the State of Utah (without reference to its rules as
to conflicts of law).

     5.   COUNTERPARTS. This Amendment may be executed in any number of
counterparts, each of which shall be deemed an original, but all of which
together shall constitute a single instrument.

     6.   AGREEMENT. In all other respects the Employment Agreement is ratified
and shall, as so changed by these amendments, continue in full force and effect.

     7.   NO STRICT CONSTRUCTION. The Parties have participated jointly in the
negotiation and drafting of this Agreement. In the event that an ambiguity or
question of intent or interpretation arises, this Agreement shall be construed
as if drafted jointly by the parties hereto, and no

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presumption or burden of proof shall arise favoring or disfavoring any party by
virtue of the authorship of any provisions of this Agreement.

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     IN WITNESS WHEREOF, the Parties have executed this Amendment as of the date
first set forth above.

                                        ICM EQUIPMENT COMPANY L.L.C.

                                        By: /s/ Gary W. Bagley
                                           -------------------------------------
                                           Name:
                                           Title:

                                         /s/ Kenneth Sharp, Jr.
                                        ----------------------------------------
                                        KENNETH SHARP, JR.

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