plates for Porsche 935 Turbo wheels? HOW TO??

I´m just wondering. How can I actually produce those plates for the wheels for the Porsche 935 Turbo 77.

http://files.automotiveforums.com/gallery/watermark.php?file=/503/61327exoPorsche935tire.jpg

I just have a kit, which doen´t come with the wheels and I need those plates to make my "JMS" 1977 as realistic as it was. The "Martini" - kit I got, just has the regular BBS-wheels. I´m wondering, if there is anybody producing them aftermarket, so that I don´t have to buy the Tmaica kit just for the wheels!!!

I use the Ford Capri Wheell cover in my 935 interescope!
Buth i have the covers from Scaledesign in resin!
I can give to you for free if you want that! 1/24 high!?