I have heard some things about the Calmini springs so I went with the Old Man Emu 912 springs, I guess Calmini's wear down to being too soft after a year. You will want new shocks (not Bilstein 5150's see thread: "Bilstein 5150's suck") in the rear but keep the stock ones up front if they are still good. I would stick with 32's as 33's cause some rubbing issues even if you trim a lot. You will have lower rpms on the highway due to larger tires but it won't ruin the power too bad. If you choose MT tires you won't really want to go 80+mph so if you want to go fast still I would go with some BFG AT's.
If you want to buy a lift "kit" get it from www.Darlington_offroad.com But if you just want to lift it buy yourself some 912 springs crank that torsion bar to match new height, change the rear shocks and your good to go!
2001 Ironman Daily Driver... 3.5" suspension lift (OME912 springs and 1" spring spacer), ball joint flip, 1.5" front diff. drop, 33"x12.5 TrXus MT, 16x10 Eagle Alloy rims, Interceptor, PV muffler, K&N air filter, Alpine Supercharger, Bilstein shocks, and some trimming.
2000 Ironman Project LS-1 VX... very slow progress but someday....... ohhhhh someday......