Many thanks for your replies.
John +4 - I looked on the MWS website but could only see tools for the hexagonal fitting.
4acker - I looked at the oldtimer website but the prices were a bit steep for me.
Jays - I spoke with Paul Harris and he said they were about 6 weeks away. He was very helpful though.
Kinmont - Thanks, this seems like the best option.
sospan - PM sent.
Thanks again to everyone.
Paul