Don't do it man! Diamond 60s are more dough than they are worth. It would be worth wile to retube the 60 with some dedenbar SP? Cs. I would personally start with a chevy 60 but they arent jumping in my lap. I do have a couple leads on one dodge 60 for mucho deniero and a dana 70 front with some funny big 6lug pattern and hydro assist.
I like the 9 inch 3rd option and the ground clearance. I don't really have any leads on a chevy or dodge 60 at the moment. I had the money a couple years ago and a buddy tried to sell me a set of locked with 4.56 60s for 1100 and I didn't do it.