I'm in KC too. I'd say a number of thisforums members are from MO and in particular the KC quadrant of the state. I'd be interested. I know personally that the missouricarry.com website is a major source for CCW andefforts on many firearms related issues is organized and helping to make a difference. Whether you would get very many takers on their forum to OC I cannot say but afew might be picked up.
I strongly believe and would support a MO OC day somewhere in the state or a more informal dinner get together in our area but have never seen ahard and fast effort put forth to do so.