OK Brock - got it! I bet we can give you some ideas!
Here's an "off the cuff" rub that might give you some ideas, or at least a starting point:
1/2 cup light brown sugar
1/2 cup kosher salt
2 Tbsp. coarse black pepper
2 Tbsp. chili powder
1 Tbsp. Mrs. Dash Original Blend
1 Tsp. cayenne pepper (or chipotle pepper)
This should be enough for one butt, to at least try. Feel free to modify, or suggest something new! BBQ is all about experimentation, and finding what works
for you! There are NO wrong answers!