you can check out random bagging posts on
www.blazinlow.com there are a few guys on there with 4wd's that they used the inner (or outter, i forget) piece of their front cv's cause it holds the bearings in and the hub on, but they dont have the actual shaft there anymore.
from there you use a torsion bracket kit, relocate the shocks.. if you want to lay out, i think you have to go with custom tubular uppers and moving the mounting point.. this i'm not 100% sure about, i'm skimming the site myself.. luckly the blazer i'm doing, isnt laying out just yet up front, so i have time to really dig and figure the best way