My dad put a Blue Ox kit on his 13 JKU. Towed 30k+ miles with it including 15k+ up and back on the ALCAN and all through Alaska. No complaints. He sold his coach and when we tried to remove the Blue Ox adapter to sell it, there was no way to get it off due to bolt access(I am guessing most of the bolt on kits have the same problem), so he just left it alone since its pretty unobtrusive.
As far as the brakes, I think he used a Brake Buddy, but not sure, and he used the Jeep wiring kit for the tail lights(its a harness that plugs in under the hood somewhere and gives you a 7 pin(I think it was) adapter for the front to connect to your coach. The Brake Buddy was all wireless. Again 30k+ miles of safe towing.
I think Poison Spyder says you can flat tow with their bumpers.