1975 Duster, An Orphan?
The answer is....if you want a different look, you'll have to do some major changes. You could make a custom grille and use your existing parts or if you like one of the earlier years ('67-72 models) you can keep your fenders but change everything else up the middle......hood, grille, bumper assy, fillers, etc, along with some minor wiring and bumper bracket mods.