Here are some simple things to consider...off-road basics, if you will:
Big tires look awesome and add a lot of capability, but they have a significant amount of mass and are more likely to CAUSE drivetrain failure elsewhere on the Jeep. Big tires like that will roast ball-joints, stress your axles, bury your fuel economy, snap drive-shafts, and blow up differentials. Sleeves, gussets, trusses, and other components will bring you added security and strength, but have you really managed to get anywhere?
A big lift brings a high center of gravity and reduces stability, on and offroad. 5" is nothing for a 1/2 ton truck, but on a Jeep it might be excessive.
I don't want to ask for numbers, I'm just going to speculate based on local dealers. Here in Indy, a Loaded Sport plus 5" lift and 38" tires on some 20" wheels will probably hit your checkbook for $45-50k after parts and labor. At this point you still have several thousand in parts and labor to strengthen the Jeep for longevity.
I'd go about this in a different way: buy a loaded Willys Wheeler, or Rubicon. These both come with mud tires and rock rails and give you the basics needed to figure out what you want to build your Jeep into.
Here's what I'd expect you end up with: a 2 1/2" lift, flares, 35-37" tires on 17" wheels, bumpers, some lights, sleeved & gusseted axles, ARB lockers, sPod, a Sport cage and a winch.