1965 Dodge Dart Charger
About a year ago Mopar Action (can't remember what issue) had an article about putting hood pins on a current Dodge Challenger. To restrict corrosion from the holes drilled in the hood they suggested brushing on some "zinc-Rich galvanizing compound" from an aerosol can. This might be a good approach to use on the deck lid for the holes you need to add for the DODGE letters.