I got an AI AX chassis in a trade. I have no instructions and a search online came up with nada. Does anyone have a .pdf or video of the installation on this chassis? I also am trying to figure out how to swap the skin. There are so many machine screws on this thing is tough to tell what does what and even when I removed all of what I thought would remove the grip skin, I still cant get it off. Also the rear action screw cant come all the way out with the skin still installed. Any help would be greatly appreciated.