Hello there Simon, pixelady from San Francisco here. Your project sounds really interesting (I'm also in films – VFX). There was a Brit TV show or at least something aired on TV there ages ago that might interest you if you can find it. They flew a plane around the mainland coasts, all the way around and filmed the land as they went. I can't for the life of me remember what it was called and I did a quick search to try to find it, but no joy yet. I will keep trying. It might be helpful to you if I can dredge it up. It was a while ago.