Rey,
Why don't we try for Sat 10/9 since most replies can make that date? Maybe leave colors will be optimal more to the Northern areas at that time keeping roads open to the South? I'm game for 9/25, 10/2, or 10/9, depending on weather, traffic, and majority vote!
A question to you and others is: What's the priority for this run? Spirited driving, leaf peeping, or both?
I think each priority will decide the date to go for