Apollo Microwave Replacement

[ChuckleBerry]

I am looking to replace my troublesome Apollo microwave convection oven with anything else that will fit in my small space. I have an Itasca Navion and am very limited on space to replace my Apollo. I need an over the stove unit that will fit in a small area. Has anyone replaced this unit with another one of similar size?
23 5/8 " wide 17 1/2 " high 20 1/2 " deep.
The most critical dimension seems to be the width. Most units I've seen are all just under 30". If anyone has seen a unit that may work, I would certainly like to know who makes it!!
Thanks all.

[Clay L]

The one I installed in my present motor home is a Sharp Carousel Grill 2 Convection R-820-BK (the BK stands for black, I think WT will denote a white one).
The dimensions are 20 1/2(w) X 12 1/8(h) X 19 3/4(d).
Note there is/was an incorrect dimension listed on Amazon. I don't recall if it was the height or width but in any case the dimensions above are correct.

It exhausts out the back and I had to buy a build-in kit that adds sheet metal ducting so the air is sucked in from the front and exhausts back out of the front. This is a necessary step because microwave/convection ovens get much hotter and if the air exits the rear and is not vented out the temp can reach over 200 degrees behind the oven in 45 minutes or so when used in the convection mode.

The top and side grills supplied with the kit also fill in gaps and can make for a better looking installation.

It was a little too deep but we (DW really) got a little creative and figured out how to trim the sheet metal on the build-in ducts so they fit behind the supplied grills. Also had to move a junction box on the back wall behind the microwave a few inches over.

It looks like a factory installation.