Rust on my old vehicles is a never ending battle. Anywhere I can eliminate it, I will.
I love Metal Rescue. That stuff works.
Another thing I’ve just tried is soda blasting on some really thin pieces I can’t get replacements for. A sandblaster would eat them alive.
I will have to get a cabinet if I do any more than token cleaning plus a real air compressor. My 14 year old Lowes rig just barely keeps up. The compressor pumps it’s heart out.
Someday I hope to have the capability to sandblast and powdercoat (on a small scale) for myself. I hate having to farm out something I could do for me.