The issue with the rear tires rubbing is definitely with the lift. The rear control arms are only slightly downward from the mount to the axle when the Jeep is in a flat, static position. When the compressed side of the axle moves upward, it almost immediately starts also moving forward from the short radius of the control arms. Another problem (in my opinion) with the design of the SL kit is the relatively large rear lower control arm brackets. They hang me up on any ledge larger than about 13 inches. The passenger side bracket is beat silly, I probably should take it off and straighten it out. The BDS setup (and I'm guessing the method of setup Mike is talking about) would alleviate both of these 'issues'.
I'm running (as I'm sure you see in the pics) Rubicon Moab rims with 1.5" spacers. This is probably very similar to AEV's specs when using the Pintler wheel which of course doesn't require spacers. The rubbing in the rear could also be caused by the difference in some tires even when listed as 285/70's - the KM2's seem to have relatively deep tread blocks. They had 400 miles on them when I went to Moab, they probably won't rub at all after 20K.