Would you consider a little menu tweak to simplify your task? What I would do for this size party is one major festive party casserole such as lasagna or the sausage mozzarella bake on this site on the spaghetti page, or the stack enchiladas or baked spaghetti with chicken in the basic budget entrees. Or possible a taco bar?

Then one meat- chicken or ham is fine, depending on what you choose for your casserole.

A big salad. Beans of some kind, depending on the menu. A vegetable of the green bean or broccoli type.

Definite yes on the fruit, but I would do fruit trays (see the fruit tray page) rather than fruit salad; it keeps better, looks better, and the leftovers are more useful.

meatball sandwiches, 4 inches per person
boneless filets, 4 ounces per person
baked chicken a piece per person (8-9 per chicken)

potato salad, 4 gallons per 100
pasta salad, 4 pounds dry per 100
parsley potatoes, 40 pounds per 100

tossed salad, use the plan for 100 table

Appetizers:
- spinach dip, 3 quarts
- chili dip, 3 quarts
- cheese, 5 pounds, some can be logs or spreads
and salami, 3-4 pounds thin sliced dry salami
and crackers, 4 pounds
- chips, 3 pounds, 4 if corn
pretzels, 1-2 pounds
Mains:
- pulled pork, I suggest slider rolls, as this lets people have pork and chicken (which they tend to do) without wasting large sandwiches. 1 pound makes 12 sliders. about 7 pounds.
Do have 3 pounds of sliced onions and 2 quarts sliced pickles
- chicken tenders, if large (2 makes a serving), about 80, if smaller (hree to four makes a serving),about 100
- potato salad, 6-7 quarts
-mac & cheese, 5 9x13 pans, about 8 quarts
-veggie tray, salads better, bu you can use the veggie tray page for this. Ranch dip. If mature eaters, they might appreciate the classic relish tray with olives and pickles.
www.ellenskitchen.com/bigpots/plan/appesalad.html
-fruit tray, twice the tray for 25 plus some extra berries or melon, or 1/2 the deluxe tray for 100. You can save a LOT of money if you do his yourself, see the fruit tray page.