I also have found great prices on axle parts from rock auto. I just did a D44 with parts from them. I have a D60 front apart right now and am getting those parts from rock auto too.
If you have bad king pins you may also need a giant Allen wrench to get them out. It's either a 7/8" or 3/4", can't remember off the top of my head. Size should be easilly searched.
I agree on the inner tube seals, they aren't very hard and you are basically there all ready with the shafts out.