Metroids: rust repair panels!
 

Not a huge selection, but if you can fix your ball joint and frame reinforcement on your own, here are some rust repair panels that should make the rest of your restoration easier:

Rust Repair Panels: Suzuki Swift/Chevy Geo Metro 1989-1994

I really need to fix the rocker panels on the right side, and they should be done on the left. I haven't been able to find them online, so I was considering trying to do something out of fiberglass after getting rid of the rust that exists... but this would be better! Thanks!