I think most all of the reproduction sheetmetal comes from the same manufacturer, regardless of whichever vendor you buy it from-but I'm not totally sure. Someone with experience in this area will chime in, I'm quite sure. smile

Is your rusted out area very large? If not, you may be able to fabricate your own patch panel and weld it in. It would be quite hard to form if the rust is in areas with curves or the reinforcing ribs.

Regards,
Wannabe smile

"Don't expect anything and you'll never be disappointed"