One good thing about the Haier HA10TG20SB is it is in stock at most Lowes.
In my search for a residential fridge I came across some other choices. If you can wait for delivery. Look at the
Frigidaire.
You will want to close off the fridge from outside air. Then provide air circulation into the motorhome. Most of the small apartment size have temperature limits. Many are between 50° and 90°. These temperatures from outside are not good. The Frigidaire I linked has lower and higher temperature than any of the others. You can download the Frigidaire manual at the site I linked. You may want to go to Lowes and read the Haier manual from the one they have in stock. Check out there clearances.
I was going to install a residential fridge when we got home from our winter trip. But the Dometic failed before we made it home. Had the Dometic repaired with a new cooling unit for the same amount it would have cost to install the residential. Best part of the repair was I did not have to do any work other than show up at the repair facility. 3 hours later we were on our way with a working fridge.