W123 vacuum line routing, any pics?

I searched and searched, and cannot find a image of the vacuum plumbing for my '80 300CD.
Please help!
My IP shutoff valve went kaput
and I disconnected it to stop more oil from getting sucked into the lines. The vacuum lines bundled together going from engine compartment to pass compartment were oily, and there are two yellow (check valves?) and a 5 way connector putting it all together,
and due to the oiliness and vibration everthing came apart!
I am now looking at a hopeless labyrinth of vacuum lines, how does it all go together?
I would be forever grateful if someone could explain.

I also need all new fittings, any ideas on where to get them?

BTW, I got a OEM IP shutoff valve for a mere $35 @
https://www.***************/