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

https://www.classicindustries.com/product/ma1000.html
Per Classic Industries it will fit into a 70 Duster but will not be factory correct. and to you're question about if its a sin who cares, its you're car and the grille looks awesome. I would like to put one in my 71 scamp when I can swing the price.