I'm going to be working on this again at long last. I wanted to re-thank everyone who donated and let you all know that this project isn't dead, my life just gobbled up my free time for a couple of years- babies, business opportunities, all good stuff. I was working 80+ hours a week and had to prioritize.
To start with, I was able to salvage a trashed Double Dragon cab from an apartment dumpster (well, it wasn't in the dumpster, just next to it). It was modded to use an original X-Box so I'm thinking I might put CoinOps on one of my old modded X-Boxes and throw it in there to see how it works. Then I'll flesh out the cab with donations.
Again, my goal is to spend ZERO dollars on this. I'll upload pics as I start the work.
Thanks again, all!