I can't find the post but recall finding one in my area and when I inquired on here Im 99% sure I got the old "boat anchor" response.
The BIG answer is.... Do you like it?
If so, don't spend a lot, but go for it.
The seven up is the only embossed sure-vend machine like that, and they show up on eBay somewhat frequently. They always want a huge fortune for them, but they do sell in the 350.00 - 700.00 range when they sell. It must be complete because parts are difficult. If it doesn't cool, leave it there.