Looks a little different from what I remember in the SDL but I'll try to describe what I remember. Off the vacuum pump is a 5-way fitting. A line with blue stripe goes off to the air cleaner, to a vacuum amp and to the ARV on the turbo. A line with a red stripe also goes off to the air cleaner, to another vacuum amp and to the EGR valve by the turbo. There's a small black line that originates from the non-centered fitting on the vacuum amp ahead of the fuse box. There's a green cyliner about 2cm in diameter and 3cm long just downstream of the vacuum amp. The black line ducks under the cruise actuator, between the block and oil filter and continues to the vacuum modulator attached to the driver side of the transmission. The modulator is just ahead of where the shift rod attaches to the transmission.

I hope that helps.

Sixto
87 300D