Thanks Hen
Yes, I know that's not the correct cover. The PO had a new engine built by BMW in 1996 through a friend who owned a dealership, perhaps they put the cover on at that point.
I still need to make another trip to the POs garage - I'm getting the original engine, another steering box, complete KFish setup, throttle body and "lots of other stuff".
I'll take cover from the engine and put it on.