What you have listed is a project that was sold as a kit and is missing parts. The playfield and sound board are about the only two things you have from the kit. The kits were offered in 1985? for less than $1000 and, as others have stated, you probably will not get that much if you do sell it. You are trying to compare classic Stern machines that were rare with a conversion kit that is more of an oddity, is missing the backglass and has mouse poop in it. Nowhere near the same thing. If you are thinking I am saying all this because I don’t want this to be valuable, I actually have a kit just like this and I have seen many others in the Midwest for sale in various states of working over the years. If you restore the game and get it fully working, you might get 2500 for it…. on a perfect day to someone looking for one. If you decide to part it out (probably the best option at this point) I might be interested in it but, I don't really like mouse poop.

That is not true. There have been a few listed for sale, the sellers just didn't make a "marketplace ad".