The arm that sticks out for the adjuster that has the chrome knob on it - what color should the arm be?
Im skeptical if they were even painted Bill. I think factory correct is a patina of rust! If it were me though, Id paint it Rustoleum satin black
Its amazing to me how much of the cars were not painted "back in the day". It seems that only those parts which were "seen" are painted!
If you blasted the seat tracks blow them out with air. Live tracks with motor oil and work them back and forth then spray white lithium grease in all the moving parts. They will move like new forever.