I bought a Trailblazer that had a tractor land on the back of it and removed engine /trans/wiring,/contol boxes/sensors/ etc and sold all of it for what I originally paid plus a 292 in trade because it scared the hell out of me. But I did get to keep a pair of nice bucket seats. Unless you're a computer whizz and wiring genius I think you'd be better off geting the donor vehicle. It's a lot of wires.