There's not too much I'd change.
1: Bolt the Front bumper on, not weld it.
2: Do the wiring for the lights, pump, cb etc, "cleaner".
3: Build a baja tire gate instead of the roof rack for the tire.
4: Use factory nose parts instead of Chinese crap
5: lockers! Which are still a ways off.
It's my first vehicle, and I've had it almost 6 years, and that's all I'd change.