Slowly... breathe in........ breathe out.....
I found myself in the same boat several months ago. Was ready to give up on project that I had devoted so much time and money into. Had too many other projects, money was tight, obligations, family... I sat down and took a mental inventory. My wife and little boys came first. I got rid of the projects that I had bought "because they were good deals..." My '53 became the one and only project. I figured that, with so much "energy" invested in it, down the road I would regret selling it.
Finish it... but don't do it becase you HAVE to, do it because you WANT to. And if you don't want to finish it, how much do you want for it?
Andy