If you are looking for a little lift(2.5-3") the install of a front D60 would be quite simple. ORU(off road Unlimited) and SKY(sky manufacturing) make a RSK(reverse shackle kit). It is a mounting point for the front of the front springs. It also moves your front spring shackle to the rear of the front spring for a better ride. But they both add some lift.
O I have a D60 w springs, trac bar and front drive shaft for $850
As for the tranfer case and transmission i would find a ZF that was 4wd and a BW1356 or a 4407 and bolt everything in with out custom parts