Wool M37 Uniform (pants, shirt, and square buckle belt)
Shoes, Service, Type II or Roughouts
Canvas M1938 Gaiters
Soft Cover, Garrison or HBT
Jacket, M41
Helmet, M1
M1923 Cartridge Belt with M1936 suspenders
Complete Canteen, First Aid Pouch, entrenching tool/cover
Mess Kit with Utensils
Wool Blanket
Pup tent (both halves, ropes, stakes, and poles)
Gas Mask Bag, M6
Bayonet, M1 Garand
M1 Garand (replicas accepted)
Helmet net, with scrim
Bandoleer, unmarked
US Army HBT Camo Uniform
Jacket, Tanker
Combat Knife, RH-36
Overcoat, wool
Gloves, leather palmed
Jeep Cap (not the dark green cheap kind)
Binoculars, M3
Field Jacket, M43
Some other items may be suggested based off of impression or event. This, however, gives you a good general idea of the kit you should think about getting.