I have four of these which I bought last week and no longer need:
http://www.ebay.co.uk/itm/2009379849...84.m1439.l2649
Two are unused, the third was bound to the transmitter which I sent back for a refund this week and the fourth spent an evening attached to my ZX-5 so is effectively new (the RXs worked perfectly, just the EXP didn't work on the transmitter so I had to return it).
Also work with Absima CR3P and CR2S radios.
£30 posted for all four, PayPal, you pay fees.