Welcome to the forum its a great place to get your questions answered. If you are replacing a residential Frig with an RV model you will need not only propane but also 110V and 12V power. Does your rig have the outside air intake and chimney to accommodate the cooling unit? As to what model I don't have a clue but I'm sure someone on the forum will.
Jake my sidekick (yellow Lab)
2017 RAM 2500 CC 4X4 Cummins Diesel
2016 Flagstaff 26 FKWS
AF&AM & El Korah Shrine of Idaho