The uprights either side of the radiator opening are different, plus the Statesmans have the A/C condenser mount. You may be able to modify yours using the Statesman uprights, but that one on Ebay for $125 grab it. Your commercial one if good will sell for more than that.

Read the ad for the grille, it is only for the bars and attchements screws. Deville and Caprice are the same surround, Deville has a plastic insert, Caprice has alloy bars that attach individually with screws at the rear.