Hi Apejovic: we've been looking at the GoPro 6 camera solution, but you can't really use two of them side-by-side because 1) the interocular distance would be too high, causing hyperstereo (which makes you "feel" like a "giant") Hypostereo (where the interocular distance is less than 6cm) makes you feel like a fly or a mouse strapped to the drone. 2) Weight, plus with 2 360 camera rigs, one is always in the others' "way" or FOV for part of the sphere. I'm thinking of a GoPro 6 camera cube, but with extreme wideangle lenses (like 220 deg FOV, 1mm FL equivalent @ 35mm) so as to get complete parallax overlap, then you can do depth-from-disparity. A work in progress, and a very expensive experiment however...