Nice truck; I'm a Toyota guy myself. But lets not get into that now.
What all you guys are saying makes sense about getting permission and licensing etc. I was wondering how do the graphic cutters get away with selling logos from different manufactures. You can contact some if not most of those cutters and tell them the size plane you have and what company logo you want and they cut your graphics to fit.
I can't see them paying all those companies thousands if not millions to get licensed to sell the logos. But they have to have some sort of protection so they can sell them to us for $60 or $100. Not trying to stop them because I am planning on doing one myself pretty soon. But I'm going with a Toyota theme

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Brainiax post a pic of your plane when you're done. I'm sure it will look kewl.