Tires that I know currently come in 33x10.5x15:
BFGoodrich all terrain ta/ko
Bfgoodrich Mud terrain ta/km2
Toyo open country mt
Interco super swamper tsl radial
General grabber (red letters)
I liked the toyos on my k5, and I've always liked the bfg all terrains until they start wearing out, but I think I'd go for the general grabbers. The generals are probably the only ones that would measure a true 33 inches tall though so may have clearance issues.
Please post pictures when you get some new rubber