Where to buy this tuning parts

Hello boy,

I have found great pics of MB CLS tuning - it was tuned by german company ART - ( article about it is here - http://tuningmag.net/?name=mercedes-benz-cls-tuning-by-art ). I have one question - do you know any company in NY, which can deliver this stuff to me? Do you know about some pricelist of this parts?

I am interested in this rear spoiler: