Congratulations and have fun!
Know your numbers by getting it weighed while completely loaded with gear, people, gas, water and propane.
An alignment is most likely good advice and I recommend getting one while fully loaded. Though, maybe, also consider a specialty shop that will increase caster a degree or two.
A battery filler system, like flow-rite, makes keeping them topped off quarterly an easier task.
Axis 24.2 tug'n a JK