i'd go to the arcade and ask for the manager...even if they rent their machines from an amusement place, he should be able to tell you that...then you can call them to see if they have any old cabinets they want to get rid of.
i got a few cabinets over the years from an amusements company. called the guy up, asked if he had any old empty cabinets he'd like to get rid of, and how much he would want for them. i ended up getting 3 different cabinets off of him at different times, each one was $20, and werent' in bad shape.