TBH Unless your running some awesome 4 link or Scissor suspension system with 12+ inches of suspension travel along with some Hydralic bump stops you can forget jumping anything . A lot of people really don't know how expensive a Baja truck is , which is built for that kind of stuff . It takes more than just some custom shocks and a lift kit most of those vehicles are all Fiber glass to reduce the shock of the impact , Caged , and run special custom suspension systems that start at around 3500 dollars Just for starters . but If I were to build one today I would start with these things
Hydro bump stops
Long travel suspension system
Weight reduction of pretty much everything not required to keep it running
Frame reinforcement ladders
Cage
Give me a helmet and Ill try it
---------- Post added at 09:15 PM ---------- Previous post was at 09:12 PM ----------
HA I low balled the snot out of my range here is for the front only for a F150
http://www.bajakits.com/product/09-ford-f150-4wd-long-travel-race-kit/
5 grand and you can land on your front axle only