Hello Squeak_D,

It looks like this keyboard is present only in Europe.
You can see its description on www.roland.it
or www.roland.fr(if you speak italian or french).
Also www.synthplanet.com sells it for $704 and it has its description on Dutch.
George K. confirmed that this model is not known to USA Roland distributors.
You can see his comment under Oriental Arranger forum.

Good luck !

Denis