how much could I get for my engine/car ?

[djprefix]

hey, I was just wondering how much do you guys think I could get for my engine or car. I just rebuilt my engine and added a garrett t3 turbo. The engine has 57 miles on it, but I'm having an electrical problem that I can't seem to pinpoint. It's either the wiring harness or ignitor. But I'm thinking about just getting a new car to mess with. So how much do you think I could get for the engine? It's been port and polished, all new gaskets, and new pistons, and a garrett t3 turbo added. Or for the car, it has a 2 and 1/2" downpipe and a 2 and 1/4" exhaust, no cat. It's in black primer right now.