You could always try here:
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=8198854561&rd=1&sspagename=STRK% 3AMEWA%3AIT&rd=1
If you do buy a R44, I'll be happy to deliver it anywhere in the UK, for a small fee of course...
This seller also had a Raven for sale a couple of weeks ago, it might be worth sending them a mail.