i would at least check all the diffs to make sure they have oil, its easier to do it now. i think it comes 3-3-1.
i ended up running 3-5-1 in mine with 40f 30r shock oil. the stock shock oil will be ok to start with, its easy
to change later on. if your just bashing i would stay with the 13t clutchbell, the clutch will last a little longer.
make sure all metal to metal screws are locktited.