From another post I was looking for ways to adjust castor on the Coupe.

http://www.balancemotorsport.co.uk/products.asp?recnumber=107628

"NB Max Caster design requires removal of some metal around strut top. If you prefer not to modify we can supply a top mount which is a straight fit however caster will remain standard (on the dropdown menu)"

I helped develop those - you have to angle grind some metal away to fit them, but they work well enough.

Looks good - how much degrees castor can be achieved with such a plates.....

Can't remember now, it was a long time ago, I'm sure balance motorsport could tell you.

the rod on a normal style damper is two small for the bearing hole i think.
the gaz rod is very large.
I also think think the bearing life of solid style topmounts is suspect on a road car but thats another topic.