I had a 2" RE BB on my '98 TJ for quite awhile (60k miles or so). I ran 31" TSL Super Swampers off-road, so that's nearly like a 32" normal tire when you count the actual size. I'd say you'd be fine running 32" tires with a BB. My tires rubbed by fender flares at full flex, but that wasn't a problem for me.
Every Jeep's different, but I don't think you'll have any driveline vibes. If you do, you can easily lower your t'case. My t'case wasn't lowered with my BB and I never had any vibes.
You may need an alignment post-lift and tires, but maybe not. You may need to factor in another $80 for that if that's the case. Also, figure in a few bucks for a can of PB Blaster. Spray the bolts holding your shocks with it (assuming you're replacing them - I did) twice a day for a few days before you plan to do the lift and they'll come off alot easier. Yeah, even on your (new-ish) '02 TJ.
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