Hi Airfighter55,
did you ever look into the idea of combining all your .dds textures for your vehicles into one shared folder? That would eliminate a lot of duplicate textures, and ensure that there are not two different textures with the same name.
I can confirm for vehicles that a shared folder like Vehicles/Airfighter_shared works well to hold all the vehicle textures. For the driveable vehicles, a folder like aircraft/shared/airfighter_shared would do the trick.
regards,
D