I am kind of testing the water right now. I put the reserves on both bikes at $2500. Here in Los Angeles I've seen a couple GT550's (not nearly as nice, with way more rust) go for $1500 on craigslist.
I went through ebay sold listings with the KZ100's and I saw prices of the same bike -'77 burgandy- from $2500-$5500.
Crossing my fingers ;D
I am trying to start my own company right now, and I am slowly making enough to launch it.