Pick up a copy of Street Rodder or Rod & Custom magazine there are numerous vendors that offer mounts, independent suspensions,all kinds of stuff. Realize that 95% of the stuff you look at will be for 1/2-tons so you may have to do some measuring or final fitting of your own. I used 16 x 6 wheels off a 1991 Chev 3/4 ton burb and modified the original caps to fit. I also modified my steering and tie-rod ends for clearance so be aware.
http://community.webshots.com/photo/2292616490102454676DiZHOP