found the original instruction manuals. actually in pretty good condition to be honest. not a lot of my lego instructions look this good. must be the box of the 8742 visorak vohtarak that kept them safe from tears and wear
managed to build four of them from this search. the fact that i am missing four bricks in total really annoys me, because it is some of the "vanilla" bricks, not the #bionicle specific ones...
@tA i found the last parts!
Layer 13 of the Protocol Seven System