Yes - there has been such a group among this community ever since the release of the movie in 2009. Previously the Revolutionists and now the
Blue Moon Tribe - mostly made up of members of ToS/AF. It was founded very shortly after Avatar's release, and has been active ever since. We have not really advertised ourselves in neither AF nor ToS though, so I do not think everyone around knows we exist.
We've spoken with members of this project as well, but there are some fundamental differences in the way we wish to do things. Thus, a full collaboration effort is probably not for the best. I do wish you luck in your future endeavors and hope we both will be able to reach the goals we seek.