I've somehow come across and obtained two of these machines over the past year. One fully works but the other has PCB issues. Amazingly, both monitors are working and producing a beautiful image (albeit with some "wobbles and shakes").
One machine is damn near perfect. It came out of PEI, Canada. I purchased it from the original family (father/grandfather owned a small restaurant where he had a handful of games he bought himself, son/grandson inherited it and brought it across the country to Alberta). All parts/pieces are there, original keys, original instruction cards, etc. The other machine has some dings and scuffs and is missing the service door, but it's still overall a nice machine. It shows it was routed for some of its life but it's far from needing a physical restore. I purchase it off a local collector/repair guy who was looking to clear space, he got it from an operator when he closed-up shop.
How rare/sought after are these? Most posts I find about it are over 10 years old with value being all over the place ($950 - $4000). I'm hoping to use these as trade-bait/to sell to fund other projects (eg. I need a new topper for my Alien Syndrome).