I do not see a reason to make it a joint club campsite.

The SWXC has worked hard for that campsite and to allow another club to piggy back would be more benifit for them than for us.

SWXC has dues for just such things.

However.. Like was mentioned earlier. I would check to see what other benifits could be had for contributing to the toilet. I like the discounted entrance fees for club members myself.