So I finally decided I didn't like how the passenger side roof came out, and I cut out the filler panel last night, and started working on slowing down on welding, I've learned A LOT doing this chop, mainly what NOT to do, but that's the way it goes, two steps forward, one step back.
So, I got some 2" wide material .047" thick which is heavier than the roof slightly I believe, and it is more rigid that the roof material. I have the whole passenger side and back section setup now, all well tacked in place ready to finish weld SLOWLY =)
I also added a rectangular plate in the middle of the roof about 4" by 6" to give me some rigidity at the center of the roof, prior to that, I was really fighting the springback of all four corners coming together.
If I can work the passenger side to match the curvature of the driver's side then the driver's side will remain as is, if not I'll cut that out too.
Either way I'll take more pictures this weekend, and get them posted...