Portal axles a must w/ oversize discs all the way round, ARB air lockers front and rear.
Rip out the navstar and replace with the biggest baddest dale banks can turbo up for the on and off ramps. Add propane injection of course.
Dual transfer cases for creepin and crawlin
Allison Electric 6 speed w/ manual overdrive and "cruise" of course....:o)
Recaro modle "C" seats w/ massage, heat and electric adjustments.
Chop the roof 6 inches for a lower CG. Shave the door handles, trim and exterior mirrors to cut wind resistance and save gas mileage (:o)
Glass cockpit w/ Multi-function Displays for driver and passenger and installed on the backs of the drivers and front passenger seats for the two rear passengers.
All MFD's are identical in case ya need to make a trail fix. Every nut bolt and fastener on the vehicle is removeable with one handtool and a Leatherman.
DOT approved 36 inch Bead locks with 49 x 18 Michelin XC/AT all terrain tires (sippin is optional and costs extra)
And......a set of fuzzy dice and a big gulp cup holder.........
Stay safe !