@ Wally,
I came across these
http://www.germanlook.com/Forums/showthread.php?t=8987. From Carrera, a company that makes coilovers.. I spoke with them and they have for 1302/3 plates. While they are for camber, maybe they could serve as an example..
I would have bought them back then but I was struggling with some cancer in my chasis, but now I have a better chasis, and low funds. I may go this route, and if needed modify/replace the plate for both camber/caster.
Just a thought, considering the lack of options
VR
ALex