Obviously I haven't knocked on every door but I can tell you from other experience that if any of the owners were interested in selling, they'd want a mint. That's just how people seem to be around here. The blue early '60s Cadillac was on CL a couple months ago and it kinda runs but cosmetically needs everything. IIRC he was asking $8K for it. The guy probably thinks his car "collection" is worth more than his house -- which is also currently for sale and overpriced.
The other sticking point is titles. If the seller lost the title it's pretty complicated to get legal ownership. Bill of sale means nothing. So even if you get the car for free, if it doesn't come with a title and BOS, you can't own and register it.
The upside is old stuff around here is typically pretty solid.
Surprisingly, you don't see a lot of Gbody stuff sitting around though. I bet
Turbolq4 knows where some are stashed. He's probably got better stuff on his side of the river anyway. That's where all the civilized folk live, with all their jobs and book learnin'...and teeth.