If you want to make it 'official', we have to know numbers. We need to organise publicity. We need a person to be the spokesperson/publicity person. Somebody will need to draft some sort of 'terms of association' or whatever the level of formality demands. The best first start would be to arrange to meet with some MPs who will give a sympathetic ear to the cause. This should be fairly straightfoward given the political situation at present. It's too easy to have a whinge on a website, but to do something does require some organisation and, just as important, some guarantee of commitment. There's nothing worse han being only one of three people to turn up and that kills any campaign stone dead.