That's a great idea! I have heard of the NC State BBQ camp (contact the North Carolina Meat Processors Association (NCMPA)) but really don't know much about it. I did a search and as you mentioned it's pretty popular and more of a lottery to get in but looks to be a great education for those that gets accepted. I have not heard of the Grillbillies in Wendell event though so can't be of much help there.
As another side option, I did see KCBS will be holding a "Certified Barbeque Judging Class" in Greenwood, SC on 1/25/25. While they won't teach you how to cook bbq (but you can ask questions to the cooks), they teach you how to judge bbq. Here's some additional info on that:
Certified Barbeque Judging Class - Greenwood, SC
1/25/2025 - 1/25/2025
Contest ID Number: 38253
120 Main Street
Greenwood, SC 29646
Primary Contact Person: Gibson Hill
Phone: 864.942.8448
Email: gibson.hill@gwdcity.com
https://kcbs.us/cooking_classes.php
Maybe we need to get a few more of us out there teaching how to cook NC BBQ now :)
Donald