1965 Dodge Dart Charger

The front rubber gasket that goes between the hood and the core support is impossible to find.

Oh? Where did you get the incorrect repro item? The '65 and '66 Dart ones I've bought from Gary Goers in the past have been perfect. If your top two photos are of the one you were looking for, that's the kind Gary Goers sells as the '65 Dart item. If the bottom two photos are of the repro you got, that's the kind Gary Goers sells as the '66 Dart item.