Unity Pro: Using custom builds to set data before a build

I'm attempting to build my application by using MenuItem to create new menu build options, which run BuildPipeline.BuildPlayer() to create builds with different settings. Depending on which build I select, I'd like to change some data in various classes and have those changes carry over to the completed build. In essence:

 ------------
 // BuildProcess.cs : Editor class that sets data in BuildData class before creating a build
 ------------
 
 [MenuItem ("Build Process/iOS English Build")]
 public static void iOSEnglishBuild() {
     scenes = new string[] { "Assets/Scenes/myScene.unity" };

     // English version
     BuildData.SetIsInternational(false);
     
     // After data has been set, ready to build!
     BuildPipeline.BuildPlayer(scenes, "Builds/iOS", BuildTarget.iPhone, BuildOptions.AcceptExternalModificationsToPlayer);
 }

 [MenuItem ("Build Process/iOS International Build")]
 public static void iOSInternationalBuild() {
     scenes = new string[] { "Assets/Scenes/myScene.unity" };

     // International version
     BuildData.SetIsInternational(true);
     
     // After data has been set, ready to build!
     BuildPipeline.BuildPlayer(scenes, "Builds/iOS", BuildTarget.iPhone, BuildOptions.AcceptExternalModificationsToPlayer);
 }

 -----------
 // BuildData.cs : Stores data that is set right before building
 -----------
 
 using UnityEngine;
 using System.Collections;
 using System;
 
 [Serializable]
 public class BuildData : MonoBehaviour 
 {
     // References to descriptions for each region
     [SerializeField] public string[] englishData;
     [SerializeField] public string[] internationalData;
     
     // Are we using an international build?
     [SerializeField] private static bool isInternationalVersion;

     // Set from BuildProcess.cs
     public static void SetIsInternational(bool pIsInternational) 
     {
         isInternationalVersion = pIsInternational;
         Debug.Log("Set isInternational: " + isInternationalVersion);
     }

     // Called at runtime by a class who needs descriptions based on current region
     public string[] GetDescriptions()
     {
         if (isInternationalVersion)
             return internationalData;
         else
             return englishData;
     }
 }

Both builds are reporting that BuildData's isInternationalVersion is false. Is this a serialization issue? While doing a build, my debug log shows the data is being set to true, but then shows false once the build is run.

Should I be going about this in a different manner? I'm basically wanting to set certain flags when I select a build that will keep their states when the game is built. This is so that if I want to do, for example, an English vs. International build for my current project, I can just select a build option rather than manually changing some data in various scripts.