Project "Chihuahua" '65 Formula S Restoration "Estilo Mexicano"
Update: I avoided sand-blasting the rear sheet metal piece that covers the floor behind the rear seat. However, I did resort to an abrasive wheel to remove the carpet adhesive on one side, and scuff up the paint on the other side.
After the Ospho and Rust-Oleum rust reformer, went with a Rust-Oleum enamel flat black (just to save my gloss black for items that may be seen).