OK, tonight i welded in the sunroof.
Step One - Remove all paint from sunroof edges:
Step Two - Remove all paint from sunroof hole in body:
Step Three - Cut metal to fill gap where rubber sunroof seal was:
Step Four - Weld the strips to the body around the perimeter of the roof:
Step 5 - Place sunroof in hole. Shim up the bottom with wood until it is aligned properly.
Step 6 - Apply approximately sixty 1/4" welds to connecting the sunroof to the strips and the body:
Step Seven - Apply primer:
The crack will be filled and blended with body filler. The idea is to attach the roof strongly enough such that is doesn’t flex and crack the filler. This should be plenty.