I would love too see it. I am building an Airplane but I had never thought of an Airship for FPV. It would have it limitations in the wind Unless you made it very slender more like a Submarine. I wonder if you could set up the control surfaces on a Blimp like a Submarine. Really the only difference would be the density of the medium around you. Air is less forgiving but I think it would still work. Set your lift gasses to make you Buoyant in the air rather than Float. So you can go up and down when you want. Compressing air in chambers may make you heavier and letting air out would make you Lighter. It might also be cool if that Compressed Air acted like a propulsion system. Just my brain running away again.