HELP! Magura clutch M/C

Guys, does anyone know another source for the Magura clutch master cylinder - IE other than through KTM?

OR

a alternative M/C?

Thanks

Also - does anyone know the bore etc of the stock unit?

I've remembered ISR do radial M/C's.

I think their 14mm bore one would work on the clutch side.

Here is a solution
http://www.ktmtwins.com/990superduke/99030.html