Im kinda in the same boat. I've been told two different things. The first option from what i understand is the closest to the original overall diameter. Pirelli Scorpion ATR 325-55-22 or the Nitto grapplers in a 325.55.22. I have also been told that a 325 50 22 would be best. Heck if i know but the link below is to a H2 with the nittos in a 325.55.22.
My concern is that i dont have any room to spare going into the garage. I cannot afford to change the overall height as i am only a few Red C*%T hairs away from hitting on stock height.
http://www.elcovaforums.com/forums/showthread.php?t=326
It's not mine but check this H2 out (props to Iceburg11) 22X10 KMC's with Nitto Grapplers 325.55.22. More pics are available in the thread listed above.