'86 E-350 cruise control

I have a mini motorhome built on a 350 chassis, with a 7.5L gas engine. I'm looking for a diagram of the tubing, and wiring from and to the cruise control. can anyone help?....Thanks!

I might add, that what I am looking for, is where the hose from the servo unit near the electrical plug goes, and where it is connected. the others,:......... one is a "bridge" from one side of the servo to the other, and the one that comes off the servo with that one is connected to a valve on the brake pedal. It's the last one that I don't know about as it appears to have been cut.


Thanks again :)