You look good for meat. Some of the other things I would do a little differently, especially since they are mostly men.
6 pounds of mashed potatoes- cutting it VERY close; I would do 7
4 pounds of green bean casserole- I would do 6
2 pounds of cornbread dressing- way short- you need 1/2 cup per person
Gravy- about 2 quarts
2 Jars Pickles
2 Cans Olives
2 Cans Cranberries- Get 4, 2 jelly, 2 whole berry
24 Rolls- get 30
Butter- 2 pounds
1 large pumpkin pie- I would do 2
Whip Cream
1 chocolate pie- I would do 2
The thing is, a lot of people will take some of both
cookies
Need coffee and iced tea unless everyone drinks sodas