I bought an original painted grill from Joe Mendola in Tucson a few years ago - he's got quite a stash of AD parts.
He posts occasionally on classicparts.com.
He goes by DeadZoneTruckin or Mother Trucker.
Here's the last post I've seen from him- you might try PMing him from there.
https://talk.classicparts.com/thread...8/#post-119039
FWIW - he told me when he sold me my painted grill that a lot of guys that want to replate an original grill look for painted grills because the lines come out crisper than replating a chrome one