Don't sell it, you will be sorely disappointed later on. If you get frustrated, take a break from it & just relax. After my race car partner retired, I was on my own to finish my bracket car. I talked about selling it or trading for a street car, but talked myself out of it. I finally got it going, made a few passes in it & now I gathering up parts to duplicate a 416 stroker that had a cracked main web in the block. It's slow going doing it by myself, but when I see forward progress I get excited all over again.