thriftydutch wrote:
A dorm fridge won't work. I boondock too and the batteries won't last very long if I have to go through an inverter.
You are in a tight spot. Probably too expensive to fix what you have due to the R12 and age, and the only relatively inexpensive units are very inefficient. You really need to get to a modern, Danfoss compressor, unit, but they are probably 4 times the cost of the dorm frig. They probably are a bit more efficient than what you have (had), but that doesn't reduce the purchase price.
Tough decision. Good luck in whatever you decide.