You can buy EBC disks from Zoom Products for 190 a pair if you have a race license. The disks aren't the ones you see advertised, they look shite to be honest, like something off a 80's rat bike! I wouldn’t bother.
I spoke with the guys at ABE and they said they could make some disks to fit the original carriers. Unfortunately they can't make new carriers as they can't machine them that small......or something like that.
I'll dig out the number tomorrow.