Oh you meant the duck tail? Sorry, nobody is oficially making them. I have found couple of ppl making their version and selling on ebay quite often on $150-200 rate.
I got long time ago an original ABS one ( first ones were made on fiberglass, seconds were made on ABS ) sometime ago thinking on repro it on fiberglass, but stuff has being hard down here to invest any kind of money.
With a Charger born in Chrysler assembly plant in Valencia, Venezuela