Not sure if anyone has interest, but I ran across this eBay listing for what appears to be engineering samples, source code, and firmware EEPROMs for several Chaparral products.

CHAPARRAL COM. KU WIDEBAND LNB SATELLITE ENGINEERING SOFTWARE DISK EPROM LOT | eBay
THIS INCLUDES ALL SHOWN. ALL FOLDERS CONTAIN EITHER 3.5" FLOPPY DISKS OR EPROMS ALONG WITH PAPERWORK. IF IT IS NOT SHOWN THEN IT IS NOT INCLUDED.
www.ebay.com