Where can I find this grille for my Dart Sport?

My '73 (318 powered) Dart Sport has the unpainted grille but I have always loved the black one like the gorgeous car in the attached (borrowed) picture.

Can anyone point to a source to this part?

If they're hard to come by, would it be possible to replicate this part by masking/painting a stanard grille?

Thanks for any tips. :)