Last year I replaced my RM2410 with a Dometic CR1110 (sometimes referenced as a CR110) compressor fridge in my 1995 Lance. It's very efficient...average power consumption of 45 watts.
I disassembled the RM2410 to get it out. I took the door off of the CR1110 and it fit into the camper sideways with 1/4" or so room to spare. Cabinet opening size is very close...I think I added 1/2" of oak trim to the cabinet sides and maybe a little on top. There are a couple of installs of this fridge in the University section of this forum.
My feeling is this fridge cools much better than the old RM2410.
FYI, I have upgraded my charge controller, rewired battery cables from charge/controller to batteries, increased battery box size to hold two group 31 batteries and installed 320 watts of solar... I can run this fridge easily whether connected to AC or boondocking for extended periods. I don't think you need all this enhanced capacity, but it does give me piece of mind that I'm set for extended periods with no power concerns.
Another FYI...I'm stocking my fridge even as we speak. Getting ready for a weekend of bow hunting in central California!
2019 Thor Siesta 24SS
2009 Jeep Wrangler Rubicon
2006 Dodge Ram Long Bed -Cummins 5.9L
SOLD 1994 Lance 195 Squire Lite