My Payphone

I got hold of a payphone for free. They go for quite alot on Ebay, so I'm glad to get this one for free. The only problem is that it is locked up and no keys came with it. I was wondering if anyone could suggest a workaround. From doing some online searches, payphones locks can be tough to pick. My first step would be to try the local phone company. However I don't think TDS Telecom keeps payphones maintained. So they might not be of much help.

All I really want to do is to disable the coin deposit requirement and find where you would plug in the phone cable (currently I can't find the plug on it). I want to mount it in my kitchen for the coolness factor.