Is this a mid War list or a Late War list?
In mid war lists the US Parachute force cost less and have fewer stands of troops and one more command stand.
Also, how do you get two Parachute Machine gun Platoon Choices? You have two choices for weapons platoons Machine guns and mortars (81's). I to suffered from this mistake when I started, so I have some extra 1919 laying around.
My machine guns with the parachute force have been a total failure as a separate platoon, so if you take them attach them to one of your troop choices.
For my mid war list at 1000 points, I have the HQ, one full PRP platoon and one particial PRP platoon. Have one platoon of mortars (81's) and for support I have a platoon of 3 M5A1 Sturat's and a platoon of 6, 75mm Parachute light artiliary (these are a support choice at mid war).
Unless you are playing the airborne assult mission, the Parachute rifle platoons are very much infantry and need to dig in and stay put until you can shoot the crap out of the other army you are playing. Remember most of your force is Fearless/Veteran.
Good luck and keep dry.
Warrior 50