I got a freebie 77 GMC half ton last week. I drove it 80 miles to my farm after nothing but a battery change, and changing one oil-fouled spark plug. It's got a 350 engine, 350 trans, power & air, etc. LOTS of rust, but that just makes for light weight. I'll use it around the farm until I need a round track race engine, then pull the 350 and build it.
Jerry