Theres one on UK ebay at the moment.

Check here:

http://cgi.ebay.co.uk/HONDA-NSR-250-MC-21-REAR-DISC_W0QQitemZ7995808870QQcategoryZ10460QQrdZ1QQcmdZViewItem
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NSR250R MC21 (NEARLY SOLD!!)
VFR400R NC30 (SOLD)
Santa, please bring me a NSR500 and a SP-2 next year. Pleeeeease....