Camp world has a deal for install anything for $55 or so. I bought my baseplates thru CW and had them install along with the light wiring setup. At the time was like $29 per item, but must buy from CW, Could have gotten baseplates cheaper off net but then would need to pay again at time $75-100/hr for install!
they guy that sold me the rv gave me his brake setup and I did the install myself. CW would not do it since it was USED. But was pretty simple it was the hard mount AF unit I think. No messing with putting something in or pulling out to drive much easier and no storage space issues.