Rear Bumper

I screwed up! I have a 1974 Duster and I just had a 1973 rear bumper chromed and as you know it won't fit on to the bumper reinforcement. I figured all of this out at about 4 am this morning!

Can I get a 1973 Duster or rear bumper bracket so I can use the bumper I just had chromed? I guess I could get a 73 valiant bracket as well?