I assume you are coming down for Nopi. Best of luck!
For your show and based on the new paint, I would suggest you having the car polished to remove the swirls and then the
Souveran put on. The natural carnuba will let the fresh paint breathe a bit better than a synthetic sealant.
Not knowing Nashville that well, I would say that you are more likely to find a top notch detailer in the Atlanta area. Sweating the Details could help you out. He would need to be booked NOW though. gmblack also might be a good choice. he is located a bit further south. Neither would be out of the way going down to Hampton. Both of these gentlemen could accomodate you on using Souveran.
I would offer to help, but I *think* that is the same weekend as a show we have in Michigan.
Best of luck with your detail and the show.
-GT