Hi Darrell,
The GE profile will fit but here are a few things to consider. The blower assembly mounted at the top rear is designed to be oriented to blow vertical, horizontal or recirculating back thru the front. On all the installations I have done, I have added the outside chrome Splendide dryer vent thru the side wall and reoriented the blower to exhaust to the outside. The Ladies love this because there is no more hot air blowing back into the coach along with the smell of the food you are cooking.
You will have to use the GE mounting bracket, drill new holes thru the overhead shelf and an extra set of hands to assist.
Hope this helps, Fred