So I blocked,shimed,moved and measured untill I got the axle where I wanted it.Then I used some scrap 3/8X1 1/2 to tack the thing together.A couple double checks looked good! Now to mock up the cross member and control arms. At first it didn't fit quite right.A little adjustment with a 18" cresent wrench and a big vice fixed that.
Notice the custom nut spacer in the pic on the right.
At this point I marked the frame and sanded the frame and modified the curve in the lower hangers a bit.