That U.S. Classic board that is in your cabinet is a game that still has emulation problems in MAME...
http://www.mameworld.net/maws/romset/usclssicIf I were you, I'd make a post on the mame.net forum offering it up for loan or donation to one of the MAME devs to see if having the board in hand might help with emulation. I don't know if anyone will take you up on it but it can't hurt.
I would also take good pictures of your marquee and control panel and submit them to KLOV. While they're not that great, I think they're better than the ones currently there.
This will make the mame gods happy. They will smile on you and bless you with more cabinets.