Hey Jeff, funny timing. I just picked up a all original Ms Pacman and am in the process of restoring it. This one was advertised in the local classifieds for $500, I went and looked at it and talked him down to $300. It is the older ones with the painted on artwork, and it is very faded on sideart, front art and the Marquee. I recommend looking for one of the painted one as you can get the paint codes from appollo and go get quarts of the paint cheap at Home Depot, now it will take a steady hand and small brushes, but it will be cheaper in the end than the vinyl graphics, plus IMHO I think those look better.
I just purchased a CPO on ebay that is a twobits repro for $30 shipped, much cheaper than buying it from them. I did get the marquee from them, but you if you are vigilant and watch ebay you can fined NOS Ms pacman items for decent prices sometimes. If you really want it to be original I say go this route, as the original artwork, cpo, and marquee all have @coyright 1981 Bally Midway on them and the new stuff is licensed Namco, just an FYI if you like it to remain original, some other sites will have other parts for them, like the joysticks, centering grommet thing, speed up chips, coin door parts, etc.
So far with initial purchase and parts that I have gotten I am at around $450, I this Ms pacman doesn't work %100, it has blur and fade in the monitor that I will have to check out, I hope I don't have recap the monitor as I haven't done that yet, but cap kits are relatively cheap compared to replacement of the whole thing.
So if you work the local area and hit the RGVAC and BYOAC for parts and pieces, you could very well get an awesome bargain on one. It just may well need a bit of elbow grease to get it shining, but that's part of the fun of collecting.
Oh that idea about your wife going into the arcade may very well work, but keep in mind the arcade owner probably thinks he is sitting on gold even if it doesn't work or is beat up. He would prob say he could get $1000 for it on Ebay. If that's the case give your number and a price you will pay and tell him to call you if he doesn't sell it.
Good luck,
deefish