That's an interesting photo Carl, the diagonal metal strut attached to the door (two flat bars at the top, one flat bar at the bottom) isn't in any 1/72 C-130 kit I have. However, the Flightpath PE C-130 interior set I have does have it, only it's oriented wrong. I was planning on building one of the kits to have the door horizontal like that too, but it looks easy enough to do out of styrene strip. I would say as it's extended to the max, that the bottom end would be detachable so the door can be lowered even further when it's being used as a ramp.