Old Man Emu is the best kit available now, with springs and shocks. You can use Bilstein shocks with OME springs if you want because they are also good. You’ll need Teraflex extended bump stops in the front and to bolt 2 hockey pucks down to the rear spring perch on each side as bump stops. The OME kit is advertised as 1.5” lift, but actually gets you 2.5” in the real world. Stick with OME and don’t be tempted by spacer lifts from any company. Do it right the first time to avoid poor handling and problems.
What year is your Liberty? The part numbers are different for the 02-07 KJ and the 08-12 KK. You’re in the KK section but mentioned you had a KJ, so wanted to confirm.