Get a 4-Bar set and a pair of coilovers. Basic fabrication skills required. Depending on the tires and wheels you are going to use, you might have to narrow the rear end and get some new axles. If you've never done it before, enlist the help of some fellow rodders to give you a hand. There is probably a company or two around that makes a "kit" to install a 9" in your pickup, might want to do a bit of internetin and check it out.