Hi Jonatan,
Yes that is the parts, I am modifying and up grading the rear brake, I just wanted to save the one I had in case the mod didn't work and I wanted to return to the standard brakes. I decided to cut mine down and carry on with the mod, all is going to plan and should be completed in the next few days. I did see that one on eBay but was out and forgot to bid, there is another one listed now I'll watch for now.
Thanks for looking out for one, all the best with your C5, Pep