For a heli based photo bus, you can buy the whole setup, as seen on the web, for about $50,000. Personally, I think it is a huge rip off.

You would be better to get a good raptor, and learn to fly, and the G-2 sim. Then get a good electric or gas heli and a camera and set it up yourself. All that and you would be under 5 grand. The nitro helis are great to learn on, but spew too much oil for photography. It is easier to shoot from electric or gas where you don't have to contend with the nitro.

Good luck. Learn to fly it well before you strap on expensive camera gear. That would be a really costly lesson.