Things are coming along nicely.  I dont mean to bust your bubble, but you wont have near as much travel as you think you will.  With a stock width D35, your center u joint is going to bind like a muthafawka.  You really need to have someone spin your pinion while you cycle your beams with the axleshafts in place (both beams drooped, both at bump, one drooped one bumped, and vice versa).  Find the points at which you bind and strap it at that, which I can almost guarentee wont be nearly as much as you think you have.  Just want to save you some headache in the long run.
Nate