Needed help with my roof repair, it was weak and had an oil canny feel. I think I have it solved, now.

[Doug's 73 Mach1]

Glad it appears to have worked out. The workmanship looks great. One thing you might want to check (if you already haven't) is headliner bow fitment. The center of the three roof supports you added appears to be close to interfering with one of the headliner bows that fit into one of the "three hole triangular" pattern holes along the roof side rail structures. All of the other headliner bow locations appear well clear of the supports. Interference could result in, not being able to fit that bow in (headliner sag), or if it does fit, rattling against the support. Why there are three hole choices for each headliner bow is an uncertainty for me, but I suspect if has to with giving the headliner installer more freedom in getting the headliner to fit and look right.