Is there an Air Conditioner using Inverter Compressor

Right. A rear mount bracket will have to be welded in off the trailer hitch / frame. I don't see though how to mount a second unit inside the coach. Lines could run on the roof but where would it be mounted without giving up a lot of cabinet space? In the rear above the bed it's fairly easy and not a great loss of space.
I also wonder if a residential unit can stand the rattling and shaking that would be daily life mounted to an rv.