Well tummy tucking is a great way to get alot (1-3") of extra clearance on the underside of the Jeep. You will get hung up less and most aftermarket TT are far superior in strength and durability then that of the OEM.
Most of the time anyone going over 3" of lift should probably look to invest in a SYE and a CV driveshaft asap. While 4" and above of total suspension lift should be done as soon as the lift goes on to avoid driveline vibes. If not many people get spacers or "tcase drops" to lower the skid plate to allow the transfer case to have a tad bit better angle of the driveshaft going to the rear. When you do a tummy tuck keep in mind that you are lifting the transfer case 1-3" just like, its like adding 1-3" of lift. (since your axles stay the same position and the drivetrain raises thus needing proper driveline angles) so if you have anything above a 2" lift and do a TT, you will most likely need a SYE and CV
Stock height would be fine with a TT, but you will also need a 1" BL to raise the transfer case. This extra inch is to not be added to the total lift since it is lifting nothing but the body! Also since you are lifting the rest of thw powertrain, the MML would be a worthwhile install to pull that oil pan up and transmission pan!