At this point this things going to $500 to make, Who in their right mind would take one piece from five different kits?
Looking over the few remaining parts to find, here's some of my observations:
Right side forward piece, looks like the part is something hinged the upper part is cylindrical what comes to mind is a lever.
Left side forward piece, The top is a ball on a shaft, kind of looks like a ball joint for RC stuff. It has a slot for another part, might be two pieces.
Forward pieces the lower part has rivets and a part that looks like a round horizontal divet like it mounts over a rod.
The upper piece sits about 1/8" over the top of the flash and that piece from the Pilgrim Observer sits between that and the tricorder pocket.