Freethought club in rural town

[Pizza]

I'm thinking about forming a freethought club in my town. I'm hoping it can function as an informal peer support group, social network, underground community for people in the area who don't buy into religion and theism. The club can engage in social activities like going to movies, have parties, give to charities, have picnics in the local parks, read books, vent feels about the awful side of religion, and not feel alone in this insane red state area. I'm leaning towards making it an atheist/agnostic only club. As an atheist want something all my own, you know what I mean? I don't want to have to worry about offending theists by saying something critical of religion and theism or have theists shut down conversations because they think it's rude to criticize religion. Christians have churches and churches are just glorified clubs for Christians only. So why not have something for nonbelievers? I'm open to changing my mind on this and have it be open for theists who don't affiliate with any religion.
However I'm scared of likely backlash from the redneck fundies in this area. I'll want to keep the club low profile since I don't want trouble from the more fanatic fundies. How will I get members, word of mouth? Post fliers?
Any advice?