Opinions on these forums tend to be weighted towards replacing RV absorption refrigerators with residential AC units. But if you plan on doing a lot of dry camping, I would not recommend it unless you have a large battery bank or even a solar set-up.
The absorption refrigerators can run on gas for days with very little power, that's why they are in RV's. If yours doesn't work, figure out why. It might just be the circuit board. If it's the cooling unit, you can buy a new or rebuilt one without having to buy a new fridge. I changed the cooling unit out on my fridge for a little over $300.
Miles