Yes you're correct about the output shaft and extension housing, I just said trans because most people don't have the know-how to swap the output shaft.
I didn't do a buildup thread like you but I put up a post in the snapshots section, it has a couple of pics nothin special though. Its been "pretty much" finished for a month or so now. I'm still tying up loose ends, mainly something to use as a console and boots. Not to mention I need to put my new balljoints in and get an alignment.