Check this out! Someone has an estimated $100K worth of inventory from a "major GM dealership in Western Michigan" claims to have some obsolete stuff. http://cgi.msn.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=40019&item=2469837329 PDF File listing all the part numbers involved! http://webpages.charter.net/thatcomputerguy/Binder1.pdf
General rule of thumb being multiply the actual retail value of the entire inventory by 25% and it should give you an estimated sale value (If you own a GM dealership or parts supply store). In this case, I would estimate 10 cents on the dollar to be fair value to the layman.:jd: