Have you checked with the Quilt Shop in Princeton (? Garden) to see if they have retreats? Also, I think Peddler's Way in the Peoria area has retreats. I would recommend Kinderhook Lodge in Kinderhook, IL. They would be about four hours from you, but their facilities are great! And they are close to the Hickory Stick Quilt Shop in Hannibal.
Good Luck!
quilter 309