I've read much about this route and its on my to-do list. It would certainly be more fun in a group.
The big issue I always saw was how to get back to your starting location. Any ideas on how you'd do that we a group? I'm open to just about any time, though I always find early Sept great. With school started, tourist levels dropped way off no matter what/where you go and the weather tends to be warm and dry.
So put me down as a want to go.
vtbmwgs at hotmail dot com
Brian