Completely agreeing with Evan here, except for the profile bit… if you’re smart you’ll save money and go for the Koxx hub/crankset, it’s cheaper than the KH and it won’t bend as fast aaaaaaand it doesn’t have hurty bits on the cranks. I think the 2006 frame will fit a gazz, and the 2005 wouldn’t, not sure though, just ask unicycle.com before ordering. You sure you want to go for a 3" tire though, they’re pretty heavy, I might be switching to 24x2.6" myself.
I like the KH cranks because They are angled more than the koxx. also, I don’t think I’ll be breaking any hubs anytime soon(I weigh 80pounds with full pockets) but I’ll look at the koxx. I want the 3" tire for drops, hops, grip, and other stuff. If I don’t like it I can always switch to a skinnier one.