Depends upon your camping style. Occasional camping then box brake, switches, rigid tow bar may be OK. But experience is a great teacher.
We've moved up the ladder to easy to attach/detach tow bar, no aux brake parts to move, no switches etc, just plug and play. 6 wire electrical cord includes charge line AND wire from the brake lights to a MH cab light ie independent verification that the toad brakes are engaged.
BTW My first toad was a 1500 lb VW bug that I had to lay on the ground to attach the rigid tow under the car to the front axle. That got old very quick.