Where to get this valve cover?

[Gerard]

Just looking for info on the 930 wastegate on google.com and found a pic
from SJM:

 http://www.sjmautotechnik.com/Lemans/lehmann8/11.jpg

Anyone know where I can get a valve cover like that? :) Whatever
vehicle, did it have a matching belt cover? Seeing as I'm not working on
the mechanicals for some time, might as well get some funky aesthetic
stuff going. :P  "If a sticker puts +50HP on a Honda..."