Not Ranked
Your best bet is to find someone with a Contemporary in Japan and pay someone to take a mold and part from it. That process will probably be worth more than USD $3000.
Alternately (and cheaper), find a Superformance in Japan and compare the basic dimensions. It might be close enough to be adapted. With a little luck, Superformance might sell you one.
I wonder whether there are any panel-beaters in Japan that could make an aluminum one...
Good luck.
|