Depending on the size of your buns if you are doing sandwiches, I'd figure around a 1/4 pound for regular buns and on up toward 1/2 pound for jumbo buns, about like they do at Coleman's Barbecue in Hernando, Mississippi. At least it felt like they put that much meat on their sandwiches. Also, think about doing BBQ Nachos, (tortilla chips, I prefer On the Border regular not cantina thins; BBQ pork/beef; Spicy BBQ Sauce, not sweet, sweet makes it strange; A quality canned nacho cheese sauce; jalapenos to top it, and my personal twist some kind of smoked bacon cooked crispy and crumbled over the top (but the bacon is optional, as it raises cost)