The Snorkel cover is in the objects folder, IIRC I think I renamed that too ( either that or I cloned the thing and then renamed it ), the rest I just left as it was, didnt see the point in reinventing the wheel.
As to major mods, like so many bits, some times they just fall through the cracks, I'd suggest that when you have it as you want it, send a copy to both GW and NYGM. See if they are interested - the worst that can happen is a no anyway. And if that happens well ppl can always add it them selves because you have released it.