i just did ball joints, u joints, bearing seals, rotors, and pads of my K10. it sure wasnt any fun and rich is right its all labor. took about 20 hours total to do both sides. ran into snags here and there but it was alearning experience. i checked the bearings they were in good shape and i made sure to repack them with alot of grease.
while u have everything apart you might aswell just put new rotors on it and save yourself from tearing it apart later on down the road as said above