Driver side front drip rail, straight normal wear 15 + shipping Passenger side top rear windshield chrome, straight, driver quality 15 + shipping 1/4;window fuzzies, missing some clips, need work 20 + shipping
To the best of my knowledge, doors, hoods and fenders are interchangeable. I have never swapped a 66 grille into a 67 or vice versa, but I know the headlight buckets and grilles are different and I would guess some of the the attachment components are different too. Deck lids are different. My best advice would be to get a parts book and check to see if specific parts are interchangeable.
From my experience MOSTLY interchangeable. As for the grill, there some different parts like the headlight attachments and the lower grill support since 66 and 67 had different grill/headlight/turn signal setup. 66 Coronet and 66-67 Charger have the same lower grill support. 67 was different. Download the parts books for 66 and 67 then educate yourself. All part of the fun of this hobby.