Slow, Driving Rustoration 1972 Dart

decided to work on getting the rust off the sail panel, I guess some people call it the C panel, I call it a Kaiser blade. Anyway, I wire-wheeled out what little body filler was left in the rusty weld joint that had previously been covered by something resembling a vinyl top. I continued on with the wire wheel until there was bare metal. I masked off the trim pieces and put some rust convertor on both sides. My next step will be some alum-a-lead, or all-metal, or some other body filler y'all are using in the 21st century, to fill the weld seam. Then I'll prime it and put a crappy rattle can paint job on the roof to match the current state of the body.
I have the exact same issue with mine I am gonna use some all metal in the seam. When I repainted my car the first time about 15 years ago. I just used bondo and it cracked and warped after a couple years.

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