Welcome back. I have fine memories of attending your putting clinic at the 2001 Worlds.
Augusta, GA and Charlotte, NC should probably be on your itinerary---both hotbeds of disc golf and less than 3 hours apart.
In Augusta, you could of course use the IDGC, but the Hippodrome might be better. It's a private course; John Borelli has Killer B disc golf store on site (and would be the contact); and the course starts with a wide-open driving range.
Any thought on the types of courses you're looking for? The "championship" grade courses might be too much if you're looking for a broad spectrum of players to attend, and some all-wooded courses may not have a good place to demonstrate long drives.