I've installed my own rear view camera system on the motorhome, and also a home system like you referenced. I would not use the home type system on a motorhome. The camera's are much larger, are heavier, and the mount system is designed for easy adjustment but not for a vibrating environment. The home system is designed for 120volt operation, and the car/motorhome system is designed for 12 volts.
You can get around the 12 volts vs 120 volts with an inverter, but if you want to use the home type cameras on a motorhome, you'll have to find some way to mount the cameras that is better than the single swivel mount typical of a home installation.
Fred & Vicki
Richmond Hill, Ga
2000 H.R.Endeavor/Freightliner/330 Cat