Exhibit 10.6




Exhibit 10.6







FIFTH AMENDMENT TO CONTRACT FOR PURCHASE AND SALE OF REAL ESTATE






        THIS FIFTH AMENDMENT TO CONTRACT
FOR PURCHASE AND SALE OF REAL ESTATE (this “Amendment”) is made as of
the 31st day of October, 2003 (the “Effective Date”) by and between
The Keller Manufacturing Company, Inc., an Indiana corporation
(“Seller”), and Structural Systems, Inc., a Maryland corporation
(“Purchaser”).




RECITALS: 



             A.       
          Purchaser and Seller are parties to a certain Contract for Purchase and Sale of
          Real Estate made and entered into as of April 16, 2003, as amended by a certain
          Amendment to Contract for Purchase of Real Estate dated as of August 14, 2003,
          as further amended by a certain Second Amendment to Contract for Purchase and
          Sale of Real Estate dated as of October 13, 2003, as further amended by a
          certain Third Amendment to Contract for Purchase and Sale of Real Estate dated
          as of October 15, 2003, and as further amended by a certain Fourth Amendment to
          Contract for Purchase and Sale of Real Estate dated as of October 20, 2003
          (together, the “Contract”).



             B.       
          The Diligence Period under the Contract will expire on October 31, 2003.
          Purchaser and Seller wish to extend the Diligence Period until November 12, 2003
          solely with respect to Purchaser’s Tests and Studies regarding the
          environmental condition of the Real Estate, upon and subject to the terms and
          conditions specified below.




        NOW, THEREFORE, in consideration
of the foregoing premises and the mutual covenants and agreements set forth
below, Purchaser and Seller hereby agree as follows:



1.        Paragraph 4 of the
Contract is hereby amended to extend the Diligence Period, solely as it relates
to Purchaser’s Tests and Studies regarding the environmental condition of
the Real Estate, for an additional twelve (12) days, such that Purchaser’s
Diligence Period with respect to its Tests and Studies regarding the
environmental condition of the Real Estate shall expire on November 12, 2003 at
5:00 pm EST. Purchaser acknowledges and agrees that, except for its Tests and
Studies regarding the environmental condition of the Real Estate, Purchaser has
completed and is satisfied with its due diligence regarding the Real Estate and
with the results of its Tests and Studies regarding the Real Estate.




2.        The recitals set forth above
are hereby incorporated into this Amendment by reference. Except as specifically
amended or modified pursuant to this Amendment, the terms of the Contract shall
remain in full force and effect. This Amendment may be executed in counterparts,
each of which shall be deemed an original and all of which, taken together,
shall constitute one and the same instrument. Facsimile signatures of the
parties on this Amendment shall be effective as original signatures. This
Amendment shall not be effective until it has been signed by both parties.
Capitalized terms used but not otherwise defined in this Amendment shall have
the meanings set forth in the Contract.








        IN WITNESS WHEREOF, Purchaser
and Seller have caused their duly authorized representatives to execute this
Amendment as of the Effective Date set forth above.



	
"PURCHASER"



Structural Systems, Inc.





By:  /s/ A.J. Brasauskas

Printed:  A.J. Brasauskas

Its:  CFO


	
"SELLER"



The Keller Manufacturing Company, Inc.





By:  /s/ David T. Richardson

Printed:  David T. Richardson

Its:  CFO












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