You can get these in the UK and any of the other Wersi keyboards such as the Ikarus which sounds amazing and is 76 notes that doesn't weight too much (about £3500-4000 though).
Wersi are dealing I think with just the one music shop in the UK (it may be called Harmony music?). I'm sure Abacus on here can fill us all in more as he is very clued up on Wersi gear. The new OS by the way is fantastic, I've seen it in action on my mates Ikarus. Fantastic sounds and the styles have got far better since the early days.