First off don't let anyone tell you a SFA won't work because it will.. Now, if your are trying to make this a rock crawling/high speed dez truck your at two ends of the spectrum.. Slow speed rock crawling will require soft suspension to conform to the rocks while high speed dezert stuff requires a stiff suspension to prevent the vehicle from bottoming out when it comes back down to earth and a fairly low center of gravity.. My advice is to pick one sport and build the best you can for it..
Call the spring shops to figure what they set their off-road packs to like Deaver Springs in Santa Ana 714-542-3703.. Don't know which stock stuff will do but look for something heavy in the length you want or go longer for more travel.. Shocks, the 5100 is the best you can get for the price.. Get as long as you can for the front and rear because you want the most travel.. Flex the rig up to max and then place your upper mounts.. Have fun compressing those 5100's.. [img]/wwwthreads_images/icons/wink.gif[/img][img]/wwwthreads_images/icons/laugh.gif[/img] Try to get a 70-30 on suspension travel 30 up 70 droop.. Sounds backwards but you want the suspension to follow the terrain when going high speeds..
Traction bars are to patch a poorly designed suspension.. They are for 3 and 4 link type suspensions or DisKo tRucKs.. If the springs are stiff enough then no worries.. They will also kill your ground clearance for the crawling.. Yes you will need steering stabilizers with larger than stock tires x2 for 33" and above..
The poly snubbers are just fine.. Only endless accounts get the cool air bumps.. Plus the $480 those things cost could go to some really comfy suspension seats or 4 pt harness and a CAGE!!!! Absadamnlutly gusset the crapola out of the axle unless you have quite a few in your back yard and like swapping them ot.. Don't use the aftermarket gussets, sounds like your a good enough metal worker to fab one yourself..
Think about the stuff that can be moved to the rear.. Junk all your metal in favor of fiber but i know its expensive but those are the shakes in this biz.. Plus this will give you room for the bigger meats.. Or don't and catch a big whoop and the tires will take care of your fenders once and for all when you land.. May need a few spare tires for this.. Next would be battery, radiator, and fuel.. Move those to the middle and back of the bed.. Use an electric fan for the rad.. A lot of the pre run style mount their spares on the very end past the tailgate to help in the balancing act too...
Look at the race pages of all the sites to see some ideas.. Look for the class 7 and 7s for what your looking for.. Offroad mag also is featuring 7, 7S, trophy, pre run style truck you can get hints from..
If your excited about thinking this stuff just think when your driving it..