I've got an 04 Overland. If you want a V8, try to find the HO, it has an extra 30 hp if you run premium. So far, no issues with mine. It's comfy, smooth and has lots of power.
BTW we have an 02 KJ Ltd with heated leather seats (rare) that is up for sale. PM me if you are interested. KJ's will be at least $3k less than an equivalent WJ.