Just swapped out our Dometic for a Magic Chef 9.9 cu ft residential fridge. Width wise fit like a glove, height wise Magic Chef is 3 1/2" shorter. I filled that in with a 1x4 painted black and trimmed that and the fridge out. Added two vents to the bottom front to promote air circulation.
On the rear vents I covered the inside with Gorilla tape and left one inch open at the top so the fridge can breath. I added to "L" brackets to the top rear and two to the bottom rear to secure it.
It works great, I just have it plugged into the 110 where the Dometic was plugged in. Takes less than hour to reach temp. And best of all I sold my Dometic for $675 and only paid $298 for the Magic Chef at Home Depot.
Sorry, I can't add pictures as I only have a smart phone.