Full back sprites for custom megas/deltas?

Even ten years later I find that Insurgence still has unironically some of the best fakemon designs.
The game uses cropped sprites for mons on your side of the field, though, which is a bit of a bummer since I can’t imagine a proper 360 of some of the deltas and megas.
Do those back sprites exist full anywhere, by chance? Maybe fanmade or maybe internally in the team?