My advert http://www.pedelecs.co.uk/forum/threads/kalkhoff-proconnect-disc-8-2011-50cm-for-sale.21173/ having produced no interest at all, I have reduced the price to £500 and it is now on ebay:
http://www.ebay.co.uk/itm/221845984048?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649
http://www.ebay.co.uk/itm/221845984048?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649