My trailer came with surge drum brakes and didn’t last, the drum part rusted out. I then replaced the drum part with Stainless disk brakes and they just keep on going. I like the surge principal and tow my boat approx 40 times a year since 2001 with no problems in that part of the system. I also like the stainless disk because the only thing you probably will have to replace is the pads. Now if I could only keep my light bulbs working.
As for a single axel trailer with breaks I would probably pass on having them on a lighter rig like yours unless you were required to have them or you were trailring with a small tow vehicle.
FellowShip
Just for the Grins