I copied Marks brake removal on my 101. Your answer depends on the tow vehicle. I pull mine with a 1/2 ton (Tundra) and I notice it but it stops fine when loaded.
I would add electric brakes if it was as easy and bolting them on and running some wires.
Even if my surge brakes worked, I probably would have removed them because of need to lock out the system to back it up. If you demo the surge brake system, keep the drums, backing plates, and park levers!