go wings and hood scoops

Here's the scoop on mine. No wing. To me the lines of the
Duster just don't go along with the wing. But how about a
chin spoiler?

I like the chin spoiler....
Is it plastic and did it screw in to the existing holes of the rad support?
If so where can I get one? (I don't want the metal one seen on ebay)

Thanks.