Finally got the whole master cylinder, line loc, and proportioning valve all in and hooked up. The front brakes are all lined too.
I did the sealer in the rearend, and I welded on spring perches to bolt the original springs on. Then I completely reassembled the rearend. I'm going to reinstall it all back into the car tomorrow, and locate the cross member above the rearend to attach the upper spring perches to. Hopefully I can incorporate the upper spring crossmember into the upper mounts for the rear shocks too. Kill two birds with one stone. Plus I have to keep watching those pinhole leaks to see if all that work was worth it. If not I'll be P O'd. Mark L