Individual churches starting now is fine. Having a movement is more effective. It takes time to get the word out, get more churches involved, and give more teeth to the action. Plus 10-4 is appropriate for now and just sounds cool.
Oct. 4 is the Feast of St Francis in the Catholic Church...very symbolic! I wish some Catholic bishops would come on board with this. Most of them are total statists, alas, but there are a few it might be worth approaching. It would be nice if we could all strike together for freedom for Christian worship.