Mmmm that could be a bag of worms, Anything missing??? you will never know untill its time to put it back together,
Another thing about the Vanos thing, A well known motor racing car builders i know of were commisioned to build a Touring car M3, no problem they thought and binned the vanos, Thet had a very well known cam company comissioned to make a new cam/s the only thing was they could not improve or even duplicate the HP/torque the engine developed with the Vanos and after spending a serious amount of this fellas money they reinstalled the Vanos

and with the other mods they had done made very little more power,-----OOPs