just load it up with a bunch of spare parts and gear, spare tire, etc put a big 'ol heavy winch on the front.....Wheel it some and those springs' settle out some....ask me how I know...
a bigger tire would work too, but it'll work fine....
could find ya a hefty spotter/wheelin companion...to ride along...
Are you worried about the front axle? I would invest in some chromo's. Matt Pinkston just bought the Yukon chromo shafts and beefy u-joints and he does great with them. Just an idea to keep you from breaking stuff on the trail!
I put a set of yukon shafts and joints in the trooper and after one trip I cant complain. We will see how they hold up over time though. The jeep looks good, but I would recomend looking for a new front axle. If nothing else just a chevy D44. Dodge hub bearings do not like big tires.