Aside from whatever else I can bring to the party, I can't deny experience of committee work which, amongst other subjects, has included finance and governance related to charities, club memberships etc. I haven't got the capacity to do the money handling side, but I can help with the drawing up constitution/terms of reference, management and the auditing and reporting.
Just to set out my views, if it is to be done, then there are some "fine lines" which must remain uncrossed; the principal ways to avoid crossing them are:
1) Setting out the aims, terms and processes of the venture and how it will be run and administered.
2) Complete transparency of what is going on, what/where/how money comes in and goes out, the decisions being taken and the reasons behind them.
3) The limitations imposed on any executive powers of the committee through a constitution, in terms of how funds are raised, what they can be legitmately applied to, and any levels/type of expenditure authorised without needing approval from the whole membership.
4) An acceptance by the membership that the people involved will be trying to the best of their abilities to get it right for the benefit of what is important to the CA membership.
5) Not to use it as a means of profit-making or for funding commmercial goods for resale to feed back into the venture, other than under some extremely strict guidelines - it is one of the most common ways in which charities or clubs find themselves unable to support themselves, because there is too much stock of items that were "thought" would be a good seller.
Boring stuff, but I would suggest a Chairperson (with overall responsibility for keeping it on rails), a Treasurer (i.e. the one who is going to do the nitty-gritty of paying in and paying out money) and a Secretary (to record what's happened and what is planned) as the usual appointments, supplemented by others who are suited to the ideas, planning, rabble-rousing and actual execution of stuff - some expertise in the IT/media/marketing areas would be also useful.
A purpose might read something like "To maintain Club Arnage, renowned for its friendship, humour, honest information and the absence of commercial gain, as the web-based home for a bunch of individuals who share the many and various dreams that make up the Le Mans 24 hour race - and much else that takes their fancy".
Finally, there is probably some good sense in having a couple of ultimate arbiters (GF and Smokie to use but 2 examples?) in a sort of non-executive oversight role, with the ability to raise a yellow or red card as appropriate, to assure the membership that the committee's work remains honest and true to that ideal (or something similar). Quarterly meetings (virtual or otherwise) - one of them somewhere around La Sarthe in June? - and published reports.
I guess that's about it - subject to work commitments taking precedence, within reason I'm happy to bring to it what I can.
MG Mark
