I think it depends on where you are located as far as parts. There seems to be more LaCrosse machines in the midwest. As a matter of fact, I looked at a machine identical to that one about a year ago. I think they were asking $200 for that one and the 7up sign was also cracked. The machine was in Saginaw, MI. Not the same one is it?
As far as the lock your best bet is going to be drill it out and replace it unless there is a key code printed on the lock. Even so, you may have dificulty locating a replacement key.
Tim