How long are the rides you intend to document? Battery life on the small drones isn't very long, and once the battery is depleted, you're going to have to stop, retrieve it, and somehow carry it.
I have no idea how much the drone you're considering weighs, but if it's over 0.55lbs, you have FAA regulations (licensing and registration of the drone) to deal with. It's no joke. I used to fly RC airplanes (now considered drones) and was at a large RC event shortly after all the FAA rules went into effect. FAA officials showed up to check for registration numbers on the aircraft. If you didn't have one, the fine was pretty steep. Once word got out that they were writing fines, a lot of flyers packed up and left rather quickly.