Forgot to mention.
I think a throttle knob would be good if you had a winch, With an Automatic it kinda is useless...Untill I need one, Im sure.
TLCA sign up is a great way to read up on the going's on.
Get a Facotry Service Manual(FSM)
I wouldnt worry about lockers till you really need them, You will be very suprised at how well they work without them, If you were to go out and wheel the hardest trail in your area, I think you would need a bigger list than just a locker ie. sliders, afore mentioned rear bumper and lift...The like.
Once again, Congrats!