Trailer brakes are not hard to hook up provided you are able to tap into the the brake light "switch" on your car for the "signal" wire for a controller. Idk if all newer cars still use a switch down on the brake pedal to activate the brake lights.
Aside from that, a brake controller is a simple 4 wire setup.
Signal wire to activate brake controller when vehicle brakes are applied.
+ fused power source (from battery or anywhere convienent or appropriate)
- to ground
+ to trailer plug/ brakes.
Stand alone brake controllers are controlled by inertia. Hook up all the wires right and you have trailer brakes. Some controllers are self adjusting for the level or attitude you mount them, some need to be adjusted for that additionally.
Good luck with the new camper!