So, as fate would have it, I just bought my first parts rig in almost a decade an hour ago. 1966. Original white. Rust free front doors with the six-screw access panel, appropriate to your truck.
I didn’t post earlier because I’m not shipping doors any more. But if you have someone who can handle getting them from me to you, and we strike a deal, I have these from a ‘73;
Sorry, EVERY TIME I used the downsize feature to save bandwidth, MUD algorithms insist on rotating the pic😡