I just found a Febi part number for the leaky gear selector kit similar to the one I purchased through a supplier in France. http://www.tnd-france.com/etanche_e.htm looks like one of them is copying the other...the TND kit cost me £53 euro the Febi kit is much cheaper on ebay.
Febi 47222
here is one supplier, http://www.ebay.co.uk/itm/FEBI-BILST...YAL4t#shpCntId
May be useful to some one.