Steve60 I hope this works. Im not that good with computer stuff. They are all around $160 odd and $60 for postage to Australia. If this link thing didn't work just search for Ultima ignition on ebay and search worldwide and you will get about 10 of them show up. If walka can match that price I'll buy one too.

http://cgi.ebay.com/ebaymotors/Ultima-Programable-Ignition-for-Harley-Davidsons_W0QQcmdZViewItemQQhashZitem1e5b2da6c8QQitemZ130378737352QQptZMotorcyclesQ5fPartsQ5fAccessories