OK, please bear with me on this and post questions if it is not clear.
1. The hood is wider at the back than it is at the front. These measurements are referenced from the front drivers side corner of the hood.
2. Begin by establishing a centerline on the hood, front to back. This will allow transfer of measurements from the front to the back since the blackout is not tapered like the hood.
3. From the front right corner of the hood to the outside edge of the outer stripe is 3 1/2". The stripe is 7/16" wide, and the gap to the main blackout is 1/4". I seriously doubt that the factory had much precision on where they dropped the mask prior to spraying the black so consider the overall width to be approximate.
4. Measure back from the centerline and transfer your measurements to the other side of the hood, then to both sides of the rear.