3 way fridge

I have a 3 way fridge in my camper and want to know if its possible to convert it to a compressor fridge? All the engel type fridges are 240 volt and 12 volt and have compressors,they dont use much power.The one I have on 12 volt when you are driving is fine but draws too much power when parked up.Have not tried it on gas yet. If its not possible I might sell this one but I will have to pay over 1k for a front opening 12v/240 fridge. The compressor that I was looking at was a danfoss brand.

If you can get it to run on gas then that should solve your problem. They chew through the power when run on 12V, but are pretty good when run on gas

Going to sell this one.Found a waeco fridge 110 litres that will fit if I take out the top draw.Dont have to cut a hole in the van for the gas bottle . The other gas bottle is in a swing out cupboard with the cooker.