I think they've finally washed their hands of the C2.
I enquired last year if they still had spares, which resulted in a deep sigh from the other end of the phoneline, and a lecture on how they have been making more modern brakes for some time!
I told Mr Hope i thought his later brakes were cr.. , er, not so good.
I think, deep down , in his heart of hearts, he already knew this.
you can probably still get service kits - try j e james- which provided the cylinder bores aren't too scored, will work a treat!