Hi Austin
How much off roading do you plan to do with the truck? My reason for asking is that the front ends can be assembled with out the inner drive shaft and any of the ball joint parts. All you need to carry the load of the front wheels is the short outer shafts.
This has been my fall back plan if I ever break an inner shaft or have problems with the ball drive shafts. This practice of neutering the front ends was fairly common, to the point that some of the US Chevy 1 1/2 ton manuals have a special section for doing it. See
http://canadianmilitarypattern.com/T...%20Excerpt.htm on my web site.
If you go this route you really need to remove the same parts on both sides. Don't go shifting the transfer case in to 4 wheel drive while moving when you have done this it makes a horrible noise as the front shaft is not moving. However you can still use the low gear range if you come to a complete stop. Be careful though using low range with just the rear wheels driving lots of torque.
Make this as a suggestion so you can get your truck moving while you hunt for parts or a spare axle. I drove my HUP this way for a couple of years when I first had it, little quieter and little better gas mileage.
Cheers Phil