You need to be more specific. '73-'74 is one style and '75-'76 is another. They do not interchange and go with different grilles as well.
Dusters are completely different and they also have 2 different styles between those years as well.
I should have extra Dart headlight bezels to sell outright but can't check till this evening for details on condition. PM email if you haven't found one yet and I can send pics if I got one.