I know theres a lot to figure out here, and I am not nearly as good at this stuff as most of you, but I am noticing a discrepancy in the helmet. The photos from the event that are the screen worn pieces, and pictures of the actual Hot Toy show a difference in the area just below the teeth, in the middle. The area with the half moon looking thing. The screen worn version shows it in grey and it seems a bit recessed. The photos of the Hot Toys figure show it in black and not as recessed, almost on top if you will.
Any way, just my observation to try and help.