Hi Mel.
I have one that currently has Excitebike in it, but could be easily converted back to a SMB... Works fine, monitor needs a cap kit (which I have, but haven't installed yet) and I also have Vs. Goonies and Top Gun chipsets for it.
Interested in trades, or purchase only? I hadn't planned on parting with it, but it's also not my "favorite" so if a decent offer was made, I'd sell it. Will have to look up pictures tonight, but it's decent. Newer T-molding, sideart is mostly there (Pretty sure) the coin door is a little beat up, but fully functions.