Hi, I've got a set of instructions that I can copy for you if that's any help.
I've also added som pics of my Apache that I managed to build from new parts a while back. I had one that I raced when they were new, great for someone on paper round money at the time! I had a ball diff in mine but can't remember who made it.
Good luck with the resto. Sorry I can't help with bits, mine all went abroad.
http://s725.photobucket.com/albums/w...view=slideshow