maintenance

[Martin Prior]

Please excuse my ignorance guys, but which is the official club to join, is this the one..  https://www.pwa7c.co.uk/
or this http://a7ca.org/

Hi.  

The A7CA is the "umbrella" organisation for all Austin Seven related clubs.  Joining an A7CA constituent club such as the PWA7C gives you the benefits of a local group, along with those of a much bigger, national set-up.   

As Jeff mentioned above, contact Robin Taylor at the Big Seven Register.  I owned a Big Seven for a while and found him to be very helpful for specific Big 7 parts and info.  I was (and am) also a member of the Bristol A7C, which offered all that you'd expect from a local club.