Re: Rear backup camera!
I installed a TADI 7 inch monitor day/night, Bluetooth,video compatible and so on up front with wiring run back under the vehicle to the rear-mounted double 120 degree cameras(colour). I have one set for seeing the Gearspace 34 storage unit on the rear hitch and the other for seeing traffic back there. I decided against a wireless unit for well-documented reasons. Some people like them.
Matching your wireless transmitter to a larger screen may need some experimenting or you might contact a company such as TADI and ask them if it can be done and what to use.