Wow, I wouldn't put much stock in the answer to questions some of the buyers provided, stacking blocks, and replacing ubolts along with the shackles?
Anyway, it seems you have an Edge? Let's see now, 2" Tbar crank, free, AAL, less than $100, body lift, $200? Don't know about the body lift, never really priced them or wanted one. But the things I mentioned would be easier to do, and maybe even less cost.
The only thing you'd have to add to that would be a frontend aligment. And, no caster bolts, no grinding on your lower control arm, oh, and did I mention easier and cleaner looking?
But then again, it's your truck, and no matter what you do, I'm sure you'll get feedback from others on here that have done the same.