I have talked to Moser and after looking at the funds in the checkbook. I think I'm going to stick with the 8 3/4 for now. I am going to back brace it and add some material around the spring perches to help it out. I will be putting a set of Moser axles in it. I already have about the best parts I can without going to a spool in the 3rd member. If I would have thought ahead I never would have rebuilt the 8 3/4. Should have sold it and bought a Dana back then, but hindsight is 20/20! Moser said after bracing it the weak point would be the ring and pinion. They didn't really think it would be a problem, so for now I guess I'll run it.
This also means I won't be doing the minitub for now either. I'm going to see what I can do on some 27 x 10.50 15 Quick Time Pro's on a 15 x 8 wheel. I plan to take the money saved on the rear end and buy some hymed stut rods and upper control arms to help weight transfer.