Document:

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                                                                   Exhibit 10.66

                                    FORM OF
                             AMENDED AND RESTATED
                         EXCHANGEABLE PROMISSORY NOTE

Dated as of July __, 2000                                            $__________

     FOR VALUE RECEIVED, Aviation Exteriors ____________, Inc., a _________
corporation (the "Company"), promises to pay to the order of
____________________________ ("Holder") the sum of _____________________ and
No/100 Dollars ($___________) plus interest at the rate of ten percent (10%) per
annum accruing from the date hereof on the unpaid indebtedness hereof until
finally paid. Said principal and accrued interest shall be paid by the Company
in lawful money of the United States of America, at the Company's offices in
Dallas, Texas, or at such other place as may be designated in writing by the
Company, to the Holder as follows:

          (a) Commencing on August 1, 2000, accrued interest hereunder shall be
payable in monthly installments on the first day of each calendar month until
maturity; and

          (b) All outstanding principal and unpaid accrued interest shall be
finally due and payable on January 31, 2001.

     1.  Prepayment.  The principal or interest hereunder may be prepaid at any
time without penalty or premium; provided, however, the Company shall provide at
least (10) days prior written notice to the Holder of such prepayment, and such
Holder may elect to exercise its exchange rights hereunder with respect to the
indebtedness to be prepaid prior to receipt of such prepayment.

     2.  Default.  In the event of (i) any failure by the Company to make any
payment of principal or interest hereunder within ten (10) days after written
notice of default in such payment from the holder has been received by the
Company, (ii) the filing of a petition by or against the Company under the
provisions of any state insolvency law or under the provisions of the Federal
Bankruptcy Act (for bankruptcy or reorganization or other relief), or (iii) any
assignment by the Company for the benefit of its creditors, the Holder may, at
such Holder's option, declare the entire unpaid balance hereof immediately due
and payable and exercise any of its rights and remedies under applicable law.
Any delay on the part of the Holder in exercising any rights hereunder shall not
operate as a waiver of said rights; acceptance of any payment after its due date
shall not be deemed a waiver of the right to require prompt payment when due of
all other sums; and acceptance of any payment after the Holder has declared the
entire indebtedness due and payable shall not cure any default of the maker or
operate as a waiver of any rights of the Holder hereunder. Upon default, the
Company agrees to pay all costs and reasonable actual attorneys' fees for
collection of this debt instrument.

     3.  Exchange Rights.  Holder shall have the right from time to time to
exchange any or all of the unpaid indebtedness hereof (including accrued but
unpaid interest) for shares of the Common Stock, par value $0.01, of Aviation
Group, Inc., a Texas corporation ("AVGP"), pursuant to the terms of that certain
Exchange Agreement dated of even date herewith between Holder and AVGP, as
amended by First Amendment to Exchange Agreement dated as of October __, 2000
<PAGE>

(collectively, the "Exchange Agreement").  Any transfer of this Note shall
constitute a transfer of Holder's rights under the Exchange Agreement.

     4.  Release of Trade Account Payable.  This instrument is issued in
consideration for the release and cancellation of a trade account payable in the
principal amount of this instrument owing to Holder by the Company.  By
acceptance of this instrument, the Holder agrees that the Company is released
and discharged from such amount of trade account payable owing to Holder.

     5.  Successors and Assigns.  All references herein to "holder" shall apply
to its successors and assign.

     6.  Notices.  All notices and other communications to the Company under
this Note shall be deemed sufficiently given when personally delivered or three
days after being mailed by registered or certified mail, postage prepaid,
addressed to the Company c/o Aviation Group, Inc., 500 N. Pearl Street, Suite
2170, Dallas, Texas 75201, U.S.A., Attn.  President, with copy to Jenkens &
Gilchrist, Fountain Place, 1445 Ross Avenue, Suite 3200, Dallas, Texas 75202,
Attention: Daryl B. Robertson, Esq., or to such other address as the Company
shall have furnished in writing to the Holder.

     7.  Governing Law.  This Note shall be governed by and construed in
accordance with the laws of the State of Louisiana, without regard to its choice
of law principles.

     8.  Usury.  It is the intention of the parties hereto to conform strictly
to any usury laws in force that apply to this transaction.  Accordingly, all
agreements among the parties hereto are hereby limited so that in no
contingency, whether by reason of acceleration of the maturity of the amounts
owing under this Note or otherwise, shall the interest (and all other sums that
are deemed to be interest) contracted for, charged or received by the Holder
with respect to the Note, exceed the Highest Lawful Rate.  The "Highest Lawful
Rate" means the maximum non-usurious interest rate, if any, that at any time or
from time to time may be contracted for, taken, reserved, changed or received
under the laws of the United States and the laws of such states as many be
applicable thereto which are presently in effect or, to the extent allowed under
such applicable laws of the United States and the laws of such states, which may
hereafter be in effect and which allow a higher maximum non-usurious interest
rate than applicable laws now allow.  If, from any circumstance whatsoever,
interest under any agreement to which the Company and the Holder are parties
would otherwise be payable in excess of the Highest Lawful Rate, and if from any
circumstance the Holder shall ever receive anything of value deemed interest by
applicable law in excess of the Highest Lawful Rate, then the Holder's receipt
of such excess interest shall be deemed a mistake and the same shall, so long as
no default under this Note shall be continuing, at the option of the Company,
either be repaid to the Company or credited to the unpaid principal; provided,
however, that if a default shall have occurred and be continuing, and the Holder
shall receive excess interest during such period, then the Holder shall have the
option of either crediting such excess amount to principal or refunding such
excess amount to the Company.

     9.  Business Purpose.  The Company hereby represents and warrants to the
Holder that the loan evidenced hereby is a "contract under which credit is
extended for business, commercial investment, or other similar purpose," and is
not a loan for "personal, family, household, or agricultural use."

                                      -2-
<PAGE>

     10.  Replacement Note.  This Note amends, restates and replaces in its
entirety that certain Exchangeable Promissory Note dated as of the same date in
the same original principal amount as this Note.  Holder shall surrender the
original of such Exchangeable Promissory Note to the Company if it has not
previously done so.

     IN WITNESS WHEREOF, Aviation Exteriors ___________, Inc. has caused this
instrument to be executed in its name and behalf, as of the day and year first
above written.

WITNESSES:                              AVIATION EXTERIORS _____________, INC.

____________________________
                                        By:___________________________________
____________________________            Paul Lubomirski, President

                                      -3-
<PAGE>

                                    FORM OF
                            RESALE PRICE INDEMNITY
                            ----------------------

     This Resale Price Indemnity (the "Indemnity") dated as of
_________________, 2000, is made by Aviation Exteriors ___________, Inc., a
___________ corporation ("Indemnitor"), in favor of ____________________________
("Indemnitee").

                                 W I T N E S S E T H:

     WHEREAS, Indemnitor owes Indemnitee $___________ for ________________ (the
"Obligation"); and

     WHEREAS, Indemnitee has agreed to release and cancel such Obligation in
exchange for receipt of that certain Exchangeable Promissory Note (the "Note")
dated of even date herewith made by Indemnitor and payable to the order of
Indemnitee in the original principal amount of $______________, the Exchange
Agreement (defined below) and this Indemnity; and

     WHEREAS, in connection with delivery of the Note, Aviation Group, Inc., a
Texas corporation ("Aviation Group"), has entered into an Exchange Agreement
with Indemnitee dated of even date herewith (the "Exchange Agreement") pursuant
to which Indemnitee has the right to exchange, at a rate equal to the Exchange
Price (as defined below) per share, the indebtedness represented by the Note for
shares of Common Stock, $0.01 par value per share, of Aviation Group (the
"Stock"); and

     WHEREAS, in connection with the execution and delivery of the Note and the
Exchange Agreement, Indemnitor desires to provide protection to Indemnitee from
a Loss (as defined below) realized by Indemnitee arising from its resale at less
than the Exchange Price of Stock obtained by it upon the exchange of any
indebtedness represented by the Note;

     NOW, THEREFORE, in consideration of the premises and other good and
valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, Indemnitor hereby agrees to indemnify and hold harmless Indemnitee
from a Loss (as hereinafter defined) realized by Indemnitee upon the resale by
Indemnitee of the Stock for which any indebtedness represented by the Note is
exchanged.

     The term "Loss" shall mean the difference, if any, that results when the
average per share price realized by Indemnitee from the resale of the Stock
obtained by it upon exchange of any indebtedness represented by the Note, net of
any brokerage commission, is subtracted from the Exchange Price.  Such resale
must be a bona fide resale transaction with a party not affiliated with
Indemnitee.  Indemnitor's obligations hereunder do not apply to any subsequent
resale of the Stock by any transferee from Indemnitee.

     The term "Exchange Price" shall initially mean $3.00 per share of Stock;
provided, however, in case Aviation Group shall hereafter (i) pay a dividend or
make a distribution on its Common Stock in additional shares of Common Stock,
(ii) subdivide its outstanding shares of Common Stock, (iii) combine its
outstanding shares of Common Stock into a smaller number of

                                      -1-
<PAGE>

shares, or (iv) reclassify its shares of Common Stock, the Exchange Price in
effect immediately prior to such action shall be proportionately adjusted. For
example and not by way of limitation, if Aviation Group were to effect a
two-for-one stock split of its Common Stock, the Exchange Price would be
adjusted downward from $3.00 per share to $1.50 per share. Likewise, if
Aviation Group effected a one-for-two reverse stock split of its Common Stock,
the Exchange Price would be increased from $3.00 to $6.00 per share.

     It shall be a condition to Indemnitor's obligation to indemnify and
reimburse Indemnitee for such Loss for Indemnitor to receive a written demand
for reimbursement together with sufficient information from which Indemnitor can
verify the amount of the Loss.  Indemnitor shall promptly reimburse Indemnitee
for such Loss upon satisfaction of such condition.

     This Indemnity and Indemnitor's obligations hereunder expire at, and do not
apply to any Loss realized after, 5:00 p.m. Dallas, Texas time on the first
anniversary of the date hereof.

     EXECUTED as of the date first above written.

                              AVIATION EXTERIORS _____________, INC.

                              By:___________________________________
                              Name:_________________________________
                              Title:________________________________

                                      -2-
<PAGE>

                                    FORM OF
                   FIRST AMENDMENT TO RESALE PRICE INDEMNITY
                   -----------------------------------------

     This First Amendment to Resale Price Indemnity is made and entered into as
of October __, 2000, by and among Aviation Exteriors ____________, Inc., a
____________ corporation ("Indemnitor"), and ______________________________
("Indemnitee").

                                 W I T N E S S E T H:
                                 - - - - - - - - - -

     WHEREAS, Indemnitor executed and delivered to Indemnitee a Resale Price
Indemnity dated as of July ___, 2000 (the "Indemnity"); and

     WHEREAS, Indemnitor has previously executed and delivered that certain
Exchangeable Promissory Note (the "Note"), payable to the order of Indemnitee in
the original principal amount of $_____________; and

     WHEREAS, Aviation Group, Inc., a Texas corporation ("Aviation Group"), and
Indemnitee have previously entered into an Exchange Agreement dated as of
_____________, 2000 (the "Exchange Agreement"); and

     WHEREAS, Indemnitor has requested Indemnitee to extend the maturity date of
the Note, and Indemnitee is willing to do so in consideration for a reduction in
the "Exchange Price" set forth in the Exchange Agreement and the Indemnity from
$3.00 to $1.50 per share; and

     WHEREAS, Indemnitor and Indemnitee desire to amend the Indemnity as set
forth herein.

     NOW, THEREFORE, in consideration of the premises and other good and
valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, Indemnitor and Indemnitee do hereby amend the Indemnity by
deleting in its entirety the paragraph starting with the phrase "The term
"Exchange Price" shall initially mean $3.00 per share . . . ." and substituting
in lieu thereof the following paragraph:

          "The term "Exchange Price" shall initially mean $1.50 per share of
     Stock; provided, however, in case Aviation Group shall hereafter (i) pay a
     dividend or make a distribution on its Common Stock in additional shares of
     Common Stock, (ii) subdivide its outstanding shares of Common Stock, (iii)
     combine its outstanding shares of Common Stock into a smaller number of
     shares, or (iv) reclassify its shares of Common Stock, the Exchange Price
     in effect immediately prior to such action shall be proportionately
     adjusted.  For example and not by way of limitation, if Aviation Group were
     to effect a two-for-one stock split of its Common Stock, the Exchange Price
     would be adjusted downward from $1.50 per share to $0.75 per share.
     Likewise, if Aviation Group effected a one-for-two reverse stock split of
     its Common Stock, the Exchange Price would be increased from $1.50 to $3.00
     per share."

     The Indemnity, as amended hereby, shall continue in full force and effect.

                                      -1-
<PAGE>

     EXECUTED as of the date first above written.

                              AVIATION EXTERIORS _____________, INC.

                              By:__________________________________
                                 Paul Lubomirski, President

                              _____________________________________

                              By:__________________________________
                              Name:________________________________
                              Title:_______________________________

                                      -2-<PAGE>

                                                                   Exhibit 10.67
                                    FORM OF
                              EXCHANGE AGREEMENT
                              ------------------

     THIS EXCHANGE AGREEMENT is made and entered into this _____ day of July,
2000, by and among Aviation Group, Inc., a Texas corporation (the "Company"),
and ______________________________________ ("Holder").

                                 W I T N E S S E T H:
                                 -------------------

     WHEREAS, Aviation Exteriors _________ Inc., a ___________ corporation
("AVEX"), owes Holder $______________ for __________________________________
(the "Obligation"); and

     WHEREAS, Holder has agreed to release and cancel such obligation in
exchange for receipt of that certain Exchangeable Promissory Note (the "Note")
dated of even date herewith made by AVEX and payable to the order of Holder in
the original principal amount of $___________; and

     WHEREAS, in connection with delivery of the Note, the Company desires to
grant to Holder the right to exchange the indebtedness represented by the Note
for shares of Common Stock, $0.01 par value per share, of the Company (the
"Stock"); and

     WHEREAS, Holder and the Company are entering into this Exchange Agreement
for the purpose of setting forth the terms and conditions upon which Holder may
exchange the indebtedness evidenced by the Note for the Stock;

     NOW, THEREFORE, in consideration of the mutual promises and covenants
contained herein, the parties hereto do hereby agree as follows:

     1.   Exchange Rights.
          ---------------

          a.  Terms.  Holder, as owner of the Note, shall have the right from
time to time to exchange any or all of the unpaid indebtedness thereof
(including accrued but unpaid interest) for shares of Stock at an exchange rate
of indebtedness equal to the Exchange Price (as hereinafter defined) per share
of the Stock.  Such exchange right may be exercised at any time prior to the
maturity date of the Note.  To effect such exchange, Holder must tender the Note
to the Company at its offices in Dallas, Texas, together with a written notice
of exercise of such exchange right stating the amount thereof being exchanged.
Upon the giving of the notice of exchange and receipt of the Note by the Company
as hereinabove provided, no further interest shall accrue upon the exchanged
indebtedness thereof, the amount of the exchanged indebtedness shall be deemed
canceled, and the Company shall issue to Holder a certificate evidencing the
shares of the Stock to which Holder is entitled in proper form.  The Company
will pay any documentary stamp taxes attributable to the initial issuance of
shares of the Stock upon the exchange of any debt represented by the Note.
<PAGE>

          b.  Exchange Price.  The term "Exchange Price" shall initially mean
$3.00 per share of Stock; provided, however, in case the Company shall hereafter
(i) pay a dividend or make a distribution on its Common Stock in additional
shares of Common Stock, (ii) subdivide its outstanding shares of Common Stock,
(iii) combine its outstanding shares of Common Stock into a smaller number of
shares, or (iv) reclassify its shares of Common Stock, the Exchange Price in
effect immediately prior to such action shall be proportionately adjusted.  For
example and not by way of limitation, if the Company were to effect a two-for-
one stock split of its Common Stock, the Exchange Price would be adjusted
downward from $3.00 per share to $1.50 per share.  Likewise, if the Company
effected a one-for-two reverse stock split of its Common Stock, the Exchange
Price would be increased from $3.00 to $6.00 per share.  In the event the Stock
shall be changed into another kind of capital stock or debt (otherwise then
through a stock dividend, split, combination or reclassification) or shall
represent the right to receive some other security or property, as a result of
any capital reorganization or any merger or consolidation with another
corporation in which the Company is not the surviving corporation, or any sale
of all or substantially all of the assets of the Company to another corporation,
such debt shall (subject to further adjustment in the exchange price as herein
provided) thereafter entitle Holder to acquire upon exchange thereof the kind
and number of shares of stock  or other securities or property to which Holder
would have been entitled if it had the Stock issuable upon the exchange of the
debt evidenced by the Note immediately prior to such capital reorganization,
merger, consolidation or sale of assets.

          c.  Securities Law Registration and Transfers.  The Company agrees
that it shall use commercially reasonable best efforts to file and cause to
become effective as soon as practicable a registration statement with the
Securities and Exchange Commission (the "Commission") covering the reoffering
and resale by the Holder of the shares of Stock to be issued upon exchange of
indebtedness represented by the Note.  Holder agrees to cooperate with the
Company in effecting such registration and provide, upon request, information
regarding itself and any planned distribution.  Nevertheless, the certificates
evidencing such shares, if and when issued to Holder upon conversion, shall bear
an appropriate legend to the effect that such shares have not been registered
under the Securities Act of 1933 nor under the securities laws of any state and
that such shares may not be sold within the United States of America unless so
registered or unless the Company shall receive an opinion of counsel
satisfactory to it that such registration is unnecessary.  When the Company
effects the registration with the Commission of such shares for resale by the
Holder, notwithstanding such legend, the Holder shall be able to resell the
shares under the Securities Act of 1933 so long as it satisfies the prospectus
delivery requirements and so long as the registration statement remains
effective.  The Company shall maintain the effectiveness of the registration
statement until the earlier of the resale by Holder of all such shares, the
repayment in full of the Note or when the Holder is able to resell the shares of
Stock issuable upon exchange without restriction under the Commission's Rule
144(k).

          d.  No Fractional Shares.  No fractional shares of the Stock shall be
issued upon exchange of the Note.  Instead of any fractional share which would
otherwise be issuable upon such exchange, the Company will pay a cash adjustment
with respect to such fractional share in an amount equal to the same fraction of
the then effective exchange rate.

          e.  Rules of Procedure.  The Board of Directors of the Company, or a
committee established by it, shall have the right from time to time to adopt
specific rules of procedure to carry

                                       2
<PAGE>

out the full intent of the exchange provisions of this Exchange Agreement and to
do all reasonable acts therefor; provided that such rules and acts shall not
violate the specific terms of this Exchange Agreement or the Note.

          f.  Resale Upon Company Request.  Following the registration of the
Stock for resale with the Commission, the Company may request the Holder to
exercise its exchange rights and resell all or a portion of the Stock into the
market in accordance with the plan of distribution provisions of the prospectus
contained in the effective registration statement covering such resale, and the
Holder shall promptly cause the exercise of its exchange rights hereunder and
the resale of such Stock to be effected in such manner, at the cost and expense
of the Company.  Prior to the effectiveness of such registration, if the Company
identifies a buyer for all or a portion of the Stock in a private transaction,
the Company may request the Holder to exercise its exchange rights and resell
such Stock to such buyer in a manner that complies with all applicable
securities laws, at the cost and expense of the Company, and the Holder shall
cooperate in exercising its exchange rights and in effecting such resale of such
Stock; provided, however, the Holder may request an opinion from legal counsel
satisfactory to it to the effect that the sale of such Stock is made pursuant to
an applicable exemption from registration under the Act and applicable state
securities laws as a condition to effecting such resale.  In connection with any
resale, Holder shall provide any documents required by the Company's transfer
agent (including certificates as to transfer authority for the person signing
any stock transfer and medallion signature guarantees on the stock transfers) to
effect the transfer of the Stock.

     2.  Recognition of Holder.  Prior to receiving notice of any transfer of
the Note, the Company may treat the then current holder of the Note, as
reflected on the records of the Company, as the person exclusively entitled to
receive notices and otherwise to exercise rights hereunder.

     3.  Releases.  In consideration for receipt of the Note and the execution
of this Agreement, Holder hereby releases and discharges AVEX from the
Obligation owing by AVEX to Holder in the same amount as the Note.

     4.  Investment Representations.  In connection with any exercise of
Holder's exchange rights, Holder hereby makes the following investment
representations and covenants to and with the Company:

          a.  The Holder acknowledges an investment in the Stock is highly
speculative and involves a high degree of risk, including the significant risk
of a total loss of investment.  The Holder is financially able to bear the
economic risks of an investment in the Company and has no need for liquidity in
this investment and can afford to bear a complete loss of its investment in the
Company.

          b.  The Holder is an "accredited investor" as that term is defined in
Rule 501(a) of Regulation D under the Securities Act of 1933, as amended (the
"Act").

          c.  By reason of the Holder's own business and financial experience or
that of those persons retained by the Holder, who are unaffiliated with and not
compensated by the Company or its officers, to advise the Holder with respect to
this investment, the Holder has such knowledge, sophistication and experience in
business and financial matters in general and with

                                       3
<PAGE>

respect to investments of a nature similar to an investment in the Company so as
to be capable of evaluating the merits and risks of, and making an informed
business decision with regard to, the acquisition of the Stock, and has the
capacity to protect the Holder's own interests.

          d.  The Holder has had the opportunity to ask questions and receive
answers concerning the Stock and the Company and to obtain any additional
information which the Company possesses or can acquire without unreasonable
effort or expense that is necessary to verify the accuracy of information
furnished to the Holder in this connection.

          e.  The Holder is acquiring the Stock of the Company solely for its
own account, for investment purposes, and not with a view to or for resale in
connection with any distribution or public offering thereof, within the meaning
of any applicable securities laws and regulations, except to the extent set
forth in this Agreement.  The Holder understands that the offer and the sale of
the Stock have not been registered under the Act or any applicable securities
laws of any state by reason of specific exemptions under the provisions thereof
that depend in part upon the investment intent of the Holder and of the other
representations made by the Holder herein.  The Holder understands that the
Company is relying upon the representations, covenants and agreements contained
herein (and any supplemental information) for the purposes of determining
whether this transaction meets the requirements for such exemptions.

          f.  The Holder understands that the Stock is "restricted securities"
as that term is defined in Securities and Exchange Commission Rule 144, and
accordingly, must be held indefinitely unless they are subsequently registered
under the Act or an exemption from such registration is available for any resale
under Rule 144 or otherwise.

          g.  The Holder acknowledges and consents that (i) the Holder will not
sell, assign, pledge, give, transfer or otherwise dispose of the Stock or any
interest therein, or make any offer or attempt to do any of the foregoing,
except either (A) pursuant to a registration of such Stock under the Act and all
applicable state securities laws or (B) in a transaction that is exempt from the
registration provisions of the Act and all applicable state securities laws, and
(ii) the certificates evidencing such Stock shall bear an appropriate legend to
the effect that the Stock has not been registered under the Act nor under the
securities laws of any state and that the Stock may not be sold within the
United States of America unless so registered or unless the Company shall
receive an opinion of counsel satisfactory to it that such registration is
unnecessary.

          h.  The Holder resides or keeps its principal place of business in
__________.

     5.   Miscellaneous.
          -------------

          a.  The Company shall at all times reserve and hold available
sufficient shares of the Stock to satisfy all exchange rights of this Exchange
Agreement and the Note.  Shares deliverable upon the exchange of the Note shall,
at delivery, be fully paid and nonassessable, free from all taxes, liens and
charges arising out of their issuance.  In the case of the exchange of less than
all of the indebtedness of the Note, the Company shall cause AVEX to cancel the
Note and execute and deliver a new promissory note of like tenor and date for
the balance of the unpaid and unexchanged indebtedness.

                                       4
<PAGE>

          b.  This Exchange Agreement does not entitle Holder to any voting
rights or other rights as a shareholder of the Company, or to any other rights
whatsoever except the rights herein expressed.  No dividends are payable or will
accrue on the shares of the Stock into which the principal amount thereof may be
exchanged until, and except to the extent that, the exchange right granted in
this Exchange Agreement is exercised.

          c.  No provisions of this Exchange Agreement or the Note restrict any
declaration of dividends by the Company, require the maintenance by the Company
of any reserves or any minimum financial condition, or restrict the incurrence
of additional debt or the issuance of additional securities by the Company.

          d.  This Exchange Agreement shall inure to the benefit of and be
binding upon the parties hereto and their respective successors and assigns.  No
provision hereof shall be construed to create any right in any person not a
party hereto.

     IN WITNESS WHEREOF, the parties hereto have executed this Exchange
Agreement on the day and year first above written.

WITNESSES:                         AVIATION GROUP, INC., a Texas corporation

_________________________          By:______________________________________
                                   Name:____________________________________
_________________________          Title:___________________________________

WITNESSES:

_________________________          By:______________________________________
                                   Name:____________________________________
_________________________          Title:___________________________________

                                       5
<PAGE>

                                    FORM OF
                     FIRST AMENDMENT TO EXCHANGE AGREEMENT
                     -------------------------------------

     This First Amendment to Exchange Agreement is made and entered into _____
day of October, 2000 by and among Aviation Group, Inc., a Texas corporation (the
"Company"), and _____________________________________ ("Holder").

                                 W I T N E S S E T H:
                                 - - - - - - - - - -

     WHEREAS, the Company and Holder have previously entered into an Exchange
Agreement dated as of _____________, 2000 (the "Exchange Agreement"); and

     WHEREAS, Aviation Exteriors __________, Inc., a ___________ corporation
("AVEX"), has executed and delivered that certain Exchangeable Promissory Note
(the "Note") payable to the order of Holder in the original principal amount of
$_________ and that certain Resale Price Indemnity in favor of Holder (the
"Indemnity"); and

     WHEREAS, AVEX has requested that the maturity date of the Note be extended,
and Holder is willing to extend the maturity date of the Note in consideration
for a reduction of the "Exchange Price" set forth in the Exchange Agreement and
the Indemnity from $3.00 to $1.50 per share; and

     WHEREAS, Holder and the Company desire to amend the Exchange Agreement as
set forth herein;

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

     1.   Section 1b of the Exchange Agreement shall be amended by amending the
first three sentences thereof to read in their entirety as follows:

          "b.  Exchange Price.  The term "Exchange Price" shall initially mean
     $1.50 per share of Stock; provided, however, in case the Company shall
     hereafter (i) pay a dividend or make a distribution on its Common Stock in
     additional shares of Common Stock, (ii) subdivide its outstanding shares of
     Common Stock, (iii) combine its outstanding shares of Common Stock into a
     smaller number of shares, or (iv) reclassify its shares of Common Stock,
     the Exchange Price in effect immediately prior to such action shall be
     proportionately adjusted.  For example and not by way of limitation, if the
     Company were to effect a two-for-one stock split of its Common Stock, the
     Exchange Price would be adjusted downward from $1.50 per share to $0.75 per
     share.  Likewise, if the Company effected a one-for-two reverse stock split
     of its Common Stock, the Exchange Price would be increased from $1.50 to
     $3.00 per share."

                                       1
<PAGE>

     2.   Holder agrees to surrender the original Note to the Company, and in
exchange for the Note, the Company shall cause AVEX to execute and deliver an
Amended and Restated Exchangeable Promissory Note containing substantially
similar terms as the Note except that the maturity date thereof shall be
extended to January 31, 2001.

     3.   The Exchange Agreement, as amended hereby, shall continue in full
force and effect.

     IN WITNESS WHEREOF, the parties hereto have executed this First Amendment
to Exchange Agreement on the day and year first above written.

                              AVIATION GROUP, INC.

                              By:__________________________________________
                              Name:________________________________________
                              Title:_______________________________________

                              By:__________________________________________
                              Name:________________________________________
                              Title:_______________________________________

                                       2

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