[Uncle Bob]

Okay, looking for some advice from any who have "been there, done that..."
The stamped channel around the roof opening on my sedan project is eaten away in the corners, photo of the worst corner attached. Does someone out there make a replacement for this stamped section? Any other solution suggestions? I would prefer to continue with the fabric insert rather than do one of those steel filler panels. The wood will be replaced during the process.
TIA