I don't know if you're lack of bumps means you don't need an engine anymore, but I'll just go ahead and offer my engines. A 1981 L28ET, don't know if it runs, but it turns by hand, selling for $400. Also a 1978 L28, doesn't run because its locked up, needs to be rebuild to run, selling for $100. And I've got a 1976 280z 4 speed transmission, selling for $100. I'm a little new to cars so I don't know what a wire harness and ecu are, or if I have them. But if you've got that $1200, I'm sure it won't be too hard to get a hold of the rest of the parts you need with that money.
I live in Fountain Valley, Email me if you're interested at draft.phunk.amd@gmail.com