One thing would be great for RV use: The compressor variable speed, and the head unit can be set to a "dry" setting or very low fan speed at night. Mine is almost inaudible when in dry mode. It should be plenty of cooling for an RV at night, and keep the humidity down. Almost no noise. The outside unit is quiet too if running slowly, but I would think you would want to rubber mount it from the RV frame and possibly mount it away from sleeping locations.
The heat pump feature is very useful and effective. They are good to a lower temperature than RV roof air heat pumps.
Don't underspec the size of the unit, these can run more efficiently at part output vs. full output.
Fitting in the big parts would be the issue. RV AC units are compact and very space effective. The tradeoff is low efficiency and noise.