OP, I think you need to step back, take a deep breath, put your wallet away for the moment & ask yourself what you want out of your Jeep. What size tires do you want to end up with and what kind of wheeling are you looking at doing? Once you figure that out then you can look at whether or not you even need axles.
Edit: re-read some of this thread. If you're into overloading will you be looking at going bigger than a 37" tire? If not, I'd throw a Dynatrac PR44 under the front & call it a day.