I really like surge brakes. I have a dump trailer with surge brakes. Unless your vehicle is factory equipped with a brake controller, electric brakes are a lot of trouble. If you have an open drive shaft, it isn't hard to disconnect the drive shaft depending on what kind of drive shaft you have. The problem with U-joints is after they are rusty. If you dissemble them regularly it should be easy. 50 something years ago, I towed my 56 Ford to the drag strip about 70 miles from here with a 1950 GMC with a 302. I don't think duct tape had been invented back then, but I had lotsa baling wire. I think baling wire and a bungee strap pulling the shaft forward would work. I used to use a screen door spring to keep the shaft in my BW T89. I used a tow bar which I wouldn't recommend at all and I crawled under the the Ford using a bumper jack which I wouldn't recommend either. But back then I was skinny enough that I might have been stuck, but not crushed. I have pulled tow dollies before and I like them. And I never had the luxury of having brakes on the dolly. As for the wiring, any auto parts will have an adapter from the 7 way RV plug to 4 pin and vice versa. I would recommend lights on the rear of the towed vehicle also.
