Congrats on the new Jeep! I have the evo leveling kit- but I only swapped out the stock 17 coils with the 2" plush coils in the front. That leveled me out, so I never added the 3/4" spacer in the back. The front coils did provide a smoother ride compared to the 17 coils, and I netted 2" of lift from them.
Shocks- depends on how long you are going to stay at that height- stock ones work fine with the leveling kit- 2" longer shocks would give you more down travel, but you would need to check the brake lines.
I am running 315/70r17 and added 1.5" bumpstops to the rear, might not be needed if running the 3/4" spacer.