For jumping I would go with:

Total Chaos Front end lift kit
L&P Steering or Total Chaos
Spring over on the rear with ALCAN Leaf Springs
Locker, A locked truck will go further than an open lifted truck.

I am not saying you cant jump an SAS truck but Dessert runners are IFS for a reason.

Stay away from any big beefy bumpers (ARB, Calimini, TJM, Shrockworks) and if anything get a tube front done. Weight is your enemy so you need to start thinking of ways to keep it light and functional.