I bought an 86 pace arrow with the 454. need a wiring diagram.

recently was given an 86 pace arrow with the 454 chevy engine. someone went through this thing and disconnected wires, and rehooked a bunch where they didn't belong. I've got most of it straightend out. but without a diagram, it gets a little confusing. between the chassis wiring, the isolater,the power off battery disconnect,and all the coach systems. I've had a pretty good time of it. any help would be great.
thanks Ray