Huck brakes just aren't great. And they're less great under a heavier rig. I'm not sure how much the disc brake kits are, but I can tell you how much a pair of new 14x2.5" Webb brake drums are.. like a thousand bucks. And that's after buying the Bendix brake backing plate, shoes, hardware, wheel cylinders etc.
I went the brake drums route because the rest of my setup was already in decent shape, save for the usual wear related repairs and cleaning of the backing plates. However, if I were doing it from scratch I'd definitely consider spending my money in the right place, in the first place-on a modern setup for which you can get parts and which, frankly, will stop a lot better especially in the wet.
With the explicit understanding that modifying brakes can result in far more harm than your kids being born naked, while making a lot of power boat payments for the right ambulance chasing attorney.. it's now been done enough that people know what works and what doesn't, what's safe and what isn't. It's a conversation worth having if you're gonna keep the rig long term, and/or give it enough go to exceed the 50mph factory top speed whoa provided by those Huck brakes.
