I believe their shocks are listed for 3-4.5" of lift which should work well with your lift. Personally I would measure the bumpstops and run the longest shock that will fit at full compression but that's not necessary if you stay in their recommended range.Just got the 3.5 inch JKS JKontrol lift kit.
Looking to get Bilstein shocks. I know 3.5 is ideal for the front shocks. Should the rear shocks be 3.5 as well ?