Can a 73 duster be modified to be a demon

I may upset the plymouth world, but i am trying to modify a 73 body to accept a 72 demon front grill and front pan. Has anyone done this and is there reproduction metal available to rebuild the pan under the grill and below the bumper etc. I dont recall what those pieces are called. I HAVE SOME OF THE DEMON METAL THAT RESHAPES THE FENDERS BUT MY DEMON PARTS ARE SAD, AND MY DUSTER FENDERS ARE EXCELLANT SO IM NEEDING TO USE THEM.