Questions About Installing a Residential Refrig in a RV?

you dont say how big of a unit you are putting in, so does it include remodeling the cabinet? I had to build a frame around my new residential fridge, I glued the frame to the fridge with a good adhesive, slide it into place, then through the roof vent I screwed a 2x4 from side to side on the walls of the cabinet on top of the fridge, then glued that to the top of the fridge