Questions About Installing a Residential Refrig in a RV?

I found a Hotpoint Refrigerator that is only on inch taller than the Dometic I am thinking about replacing. Both refrigerators are 14.5 cubic feet. If I remove the top trim it should slide in. If I have to I could lower the cabinet floor by modify the set of drawers below the opening, but DW doesn't want to do that. It is narrower than the Dometic so there will be some trim work on the sides. That is why I am interested in the trim gaps. I have gotten some good ideas.