I have been a member of WBCCI since 1995 and have participated in a number of caravans, and each one has been a wonderful experience that has included the opportunity to learn something new about the area visited as well as the time to meet many new and interesting people. Often, these caravans provide an opportunity to see and do things that may not be readily available to the individual traveler who is just passing through the area. The background preparation done by the caravan leaders is considerable and can involve months, if not years, of research and preparation.
I, too, live near The Great River Road, and agree that it offers a wonderful scenic and learning experience. A caveat for this season is that flooding has been an issue in the region South of St. Louis so there may be sections that are in rough condition, and/or there may be sections where traffic is detoured due to flood damage. I wouldn't consider the flood detours a great detriment, but it may impact some of the points of interest along the route.
Good luck with your investigation!
Kevin D. Allen
WBCCI (Lifetime Member)/VAC/Free Wheelers #6359
1964 Overlander International/1999 GMC K2500 Suburban (7400 VORTEC/4.11 Differentials)
1978 Argosy Minuet 6.0 Metre/1975 Cadillac Eldorado Convertible (8.2 Liter V8/2.70 Final Drive)