I just heard back from the folks at the GM Truck Nationals, they don't have an issue with us having a canopy or flag and banner. They did suggest that we try to come in as a group so that we could stage our trucks together, if we had I couple of late stragglers we could try and save them a spot.
So now that this thing looks like it's going to come together I'm going to start a new thread to post information and updates in. Thank you for all the ideas and links, I'm sure I'll be picking your brains more as we go.
Craig