Jay one thing you will findout, if you haven't already, race teams are notoriously cheap. They want all the images but, it isn't worth paying for. Now not every team is like that, some will pay but will try to get you down in price.
Like ssim said, you have basically layed the ground work for doing it for free and at this point getting paid is going to be hard to do. Let this be a lesson and try to find a team who is willing to pay you. Better yet, try to find two or three teams who would be willing to chip in and pay you. Less money for them and you might get paid for your work. The current team is pretty much a write off in my book now, I can't see them ponying up any money for future work. Don't burn your bridge there tho, just explain that it cost you too much to go to the tracks and you need to make a profit, let alone pay for the expenses.
On shooting sports...If you see it happen then you didn't get it.