I did like you suggested.  I created an excel spreadsheet listing the 7 assets, with their accumulated depreciation and adjusted basis.  Took a % of each against the total  fixed assets,  multiplied % by $10K allocated to sale of F/A to come up with a sale price value for each.  

Issue 1 - I put a sale value underneath the disposition date for one of them, the program is saying there's an error for one of the entries.  The asset shouldn't be linked to 6252 because the sale doesn't quality for the installment method because the gain does not exceed the income recapture computed on form 4797 part III.  Not sure how to fix this.

Issue 2 - The other issue encountered is if I put a value on the Asset Entry worksheet along with the disposition date, it increases the ordinary income to the shareholder.  This doesn't seem correct...does it?

Issue 3 - Now there's an error on the 6252 under Date Acquired.  When I linked multiple assets Proseries changed date to "various" which the program doesn't like.  It turned red for error.  It says the date is invalid for electronic filing.  Grrr....

This is indeed a difficult one for me.  Is there another way, less difficult method?  The client expects to pay capital gains.  But they should only do it on "realized" gains don't they?  Meaning recognize the gains when those installment payments come in?  And not now on the entire sale?