The ride I have planned is about 14 miles or so. It actually heads more into "town" than out towards the market. Its as flat as I could get it. The pace will be very easy and no one will be dropped or left behind.
I live a few miles from the church and have done this ride at 5:30 in the afternoon some days and the traffic is not bad at all.
If someone know of a CZ quality ride that heads towards the markets please let me know.