I am a general portrait, wedding, occasional landscape photographer but I was offered a job to shoot some air to air photography. I've never done it before but its for a friend of a good friend. This guy owns a flightseeing company and a few planes. He wants to send me up in a plane with another one of his planes following and take some pictures of his other plane near the tallest mountain in North America. 
The largest lens I have is the 70-200mm f/2.8L IS on my 5D Mark II (or I could bring the 1D MIII but I think I'll want the higher resolution). Will this be enough or should I borrow a longer one? I'm sure the planes will be decently close to each other. Don't know an exact distance though.
Most importantly what should I charge him? It's going to take around 10 hours including travel time and he only wants the rights to use the images for his website. He says he doesn't care if I sell them and make money off them either. And I doubt I'll be doing much PP at all. I typically charge $3600 for an 8 hour wedding day with all kinds of PP.
I have no clue what anyone else would charge for this kind of job. I'd almost be happy just doing it, its not going to feel like a job! Thanks in advance for any advice or tips!
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