I would certainly add a 1-2" lift along with some good 31" A/T's at a minimum and consider upgrading the shocks to Rancho RS5000x's. Add a little armor here and there, add some trusted recovery options, and add some good lighting. Next figure out how you'll be feeding yourself and acquire appropriate gear, basic creature comforts to make some things more livable, and consider extra water/fuel options depending. Medical supplies for you and backup supplies for the Jeep. I do have a RTT for my TJ which i'll admit is a situational use item for me, but I have multiple sleep arrangements. Pack appropriately for where your going and what your doing on that particular trip.
Oh and maps, have lots of navigation options!