Moon,
As far as Jeep trolls go, you're OK.
That should be a pretty wicked Jeep. What kind of ponies and torque are you hoping to get with that turbo? I also agree that even with the extra power, you probably will still re-gear the axles, just to get the most out of it with the big tires.
Keep us posted, I'm interested in the progress.
I drive out to CO almost every summer, if you wouldn't mind a 3 holding you up,
I'd like to go wheeling with you guys out there.