Perfect! That's the good ones!
There may be auctions. You have to check the paper. There are rare amusment auctions around everywhere, they are just ran by people who don't do it regularly. Here in TN, we are blessed with 3, so there's one about every month and a half. Otherwise, look at this list -
http://www.gameroommagazine.com/shows.htmAs far as the cab, Rip off the art, clean it, and go to the store and get semi-gloss latex.
Take a sander and get all the gunk off. Paint it with a roller so it is thick and has a texture. As long as it's uniform, it's good.
Make it pretty. Get some stickers or make them, then cover the CP with Plexi to cover that up. Get the coin mechs to work. And above all, fix the monitor so it looks crispy. (hard with Bob gone) but it is important. Get a Marquee that looks good either by making it with plexi and paint or actually buying one.
Then put out an ad in the paper. I've sold 2 of those for $750 to private collectors with about $400 in it. Rich guys with trophy wives. Came in and were making a game room in their house. They bought them, called from all over.
They love ms Pac. A ms Pac sells the fastest. They don't really care what it looks like as long as they can play it. Tell them you give them a 30 day warranty. Sell like hell man.