That rough country kit is a good kit but you're not going to get 3" out of it. If 2.5" is ok with you then its still a good option. Most people get the kit because its a great deal for the UCA's. If you want more lift then that then your next best option would be the cst 4" spindles. I have them super easy install and by themselves with a small block in the rear to level it out it pretty much just looks like a leveled out 4x4 which sounds like the lift your looking for. As for the alignment there is a chance that your truck came with adjustable cam bolts..I know some of the titans used to come with them but I'm not sure on the specific years. Someone else would have to chime in on that one. The prg adjustable cam bolts are a great option if you need to buy some (every shop in town here was going to charge me $180 just for the bolts and they are crappy OEM type bolts and the prg ones are much better).