Help!!! Connection brake lines back !

Hey, guys.
I hope you can help me, because I urgently need a installation or connection plan for the rear brake and hydraulic lines for an 89th V8 with brake force regulator and level control, because a friend of mine has disassembled everything without marking or photographing anything. Unfortunately, the old lines are so rusted up that they are no longer looked at where they belong. Good pictures do, too.
Thank you in advance.

Sven