Yeah man, you are gonna like those All Terrains. They are the perfect tire for what you have planned. One purchase you should make, and Boulder has a point, is a steering box skidplate. They are very inexpensive and easy to install. I would stick with the stock bumpers for now, just remove the plastic crap end caps. After your stock bumpers are beat to crap, then replace them. Just get yourself some tow hooks for now if you don't have them already.
A good first aid kit and a flashlight are invaluable, when needed, and cheap to get. You can make your own first aid kit with some items from the house. Bandaids, gauze, some scissors, alcohol swabs, bug spray, stuff like that. Just keep it in something waterproof.
You also might want to get yourself a tow strap. NO HOOKS. Should be able to pull at least 10000lbs. Remember, a Jeep might weigh 3500lbs, but a Jeep stuck in the mud weighs quite a bit more.