As a relative newcomer, can I proffer an opinion?
I've been member of another internet based bike club before, who had a free to use main section of the forum, and a 'pay to enter' members section. I was a member for two years I think, but found that the members section didn't contain anything of great merit, and of the other sections I found that I was offering technical advice etc in them to newbies and had no problem with that, but felt that I was giving out more than I was getting back if you follow? I don't think it worked as a formula, unless you really wanted to be part of the cliche.
I see nothing wrong with the club having a membership fee of £5 (purely as that's the figure being bandied around), but I think to restrict a section of this site will hamper the growth of the club.
As a technical aside, unless you have permission for manuals and technical literature to be shared, then charging to access them would land you in pretty hot water I should imagine.
If you want the Fee to give you something, then simply view it as being towards the upkeep of this as a resource.
Just my thoughts.