Hi downtempo,
Thanks for the response...
Am now looking for a shop in Belgium that has all of the items you describe...
Yesterday I was at my club and lucky me, there was someone with the same car, so he gave me some more tips

.
He suggested the double slipper would work better at our track then the front one way, so I guess I will be looking for that part instead.
Just my 3racing and blue screws question need to be answered...
Thanks again... much appriciated.