Making a little headway. I re-bent the main bows to lean forward at the top of the ferrules and remembering that Jack said to just remove the back bow until later, took it off. That closed up the gaps at the rear of the sidecurtains and straightened out the major wrinkles in the side. I ended up having to screw the ferrule fittings out on each side to tighten the top up and get the opening up near the top of the doors.
Then I put the back bow sections in un-joined and pushed them up to see what I have. The bend on them just seems all wrong - they push out too far to the rear in the corners and overall it is just too long. So I will probably have some major re-bending on them to get them to fit. I think I will screw the ferrule fittings back down just to make sure when I cut, that I don't cut too much.
Patrick - you have to admit it's looking a little better.