I put in the Nova Kool 4.3 cu ft AC/DC fridge this past year. It is surprisingly spacious, with a layout that works extremely well for us. We chose the AC/DC model since we only have 200 watts of solar. However, it has turned out to be a non issue.
Oddly, I was warned by the dealer for Nova Kool that they had issues on occasion with getting the machine into a RV. As it turned out, ours was no problem, but you may take a careful look at the measurements.
Our fridge has been sensational.... drawing less power than I had anticipated....cooling to beat the band...and quiet.
If there is one thing that I've done to insure that my wife looks forward to going on the road in our TC - its the Nova Kool. I really don't see any drawbacks to your potential installation.
Best of luck!