I did look on the UK based website forums, not any as great as this one
I've also noticed model-making is a more popular hobby is the USA than here in the UK.
I don't know a lot about F1 back in the '60's but my fiancée did buy me the Lotus Coventry Climax 1/20 scale for Christmas and I've only just finished it. It's a wonderful car and was a nice change from the other cars I've built.
But my model making is on hold for the next few weeks as I am buying an airbrush kit and attempting to teach myself how to use it (help via books and this site too)
Guy.