Brittany, this is a DIY site, where you use the many available charts and articles to make an estimate and the if you still have questions, post your estimates and I will check them.
Teens eat more than adults, preteens and younger eat less, so they will probably balance out.
I would count the wings as part of the appetizers, allow 2-3 pieces per person.
bbq chicken-hamburgers-hotdogs-ribs- this is more choices than I would plan for this meal, and makes it very hard to estimate amounts. The ribs will displace everything else, and I would either skip the hot dogs entirely or replace with Polish sausage, more tasty by far.
ribs, 1/2 pound per person
chicken 1 piece per person
35 pounds potatoes, 4 -5 pounds each dry macaroni and pasta
watermelon- 1 pound per person if it is the only dessert
All these are in the tables:
rolls- as needed for the sandwiches plus 1 per person
cob corn- 1 piece per person
frozen appetizers- 6 bites/ pieces per person
condiments- see the sandwich event page