Marge had a good point - you may want to welcome anyone for coffee, see how many folks from your area might be interested. After a gathering or two - if the ladies want to break out and have ladies-only gatherings in addition to co-ed ones - that's like a double win IMO!
Our Indy group has co-ed activities all the time - from actual organized events, to meeting for dinner someplace, to just a few gals getting together for a movie. The more you can spread the word - the better your turnout will be a good one.
ANYONE on CM can put together a gathering - they are completely member driven. Any of you in other areas that expressed interest in this great idea - post your own thread in the Meet Ups room for your area and see what happens. Once you get one or two under your belt - break the ice, so to speak - it's easier every time for folks to want to join in.
Good Luck to you - have a wonderful time!