Welcome aboard!
Drop me a list of what you are looking for. I'd be happy to help. There are tons of DIY sites out there, but also most of the documentation you will need is scattered around as well. LMK if there is any one piece you may need. For the most part, www.spies.com/~arcade is the manual "bible". Without them, we'd all be in trouble!
For what Quarterarcade.com does, and considering its a legit retail place, they do well. Prices on retail machines are always higher than Internet, because of overhead. Thats why I do not have a store front for my arcades

Still pay taxes, though>>>
Cassidy