I did this survey earlier today. Based on the questions, it's clear that any organized ride that might come of this will be a fund raiser - either pledge-basedor pay-to-ride - with proceeds going to Mississippi River projects.
The idea of a two-day ride along the Mississippi sounds good, but I would want to know a little more about what they intend to do with the proceeds before I would be able to make up my mind about how much I would pay, or be willing to fund raise, in order to do this kind of event. Nevertheless, I took my best shot and completed the survey. Click the link and do so as well if you have any interest in another scenic ride coming together in the metro area.