I just wanted to update. Wow, amazing shipping times from UK. I think I ordered it on a Tuesday and received it two days later.
I ended up with the Mini-PAC it has everything I need. Very cool little gizmo, I hooked up a pushbutton to it and loaded up MAME and just giddily pressed insert coin over and over. Hoping to wire the control panel this weekend, but have to clean the nasty old SFII buttons up and get off some old solder. Thanks for the help guys!