72 Duster Sharktooth grill to fit on a 70 Duster possible?

Hello, does anyone know If I can put a sharktooth grill from a 71-72 Duster on a 70 Duster? Has anyone done that? Is it a mortal sin? LOL. It's only a $100 more than the standard grill. Looks like I could reuse the headlight bezels.