Thanks Snoopy, Barry and beepbeep also. I managed to snag the drawing before the Moparts police swooped in to protect the world from evil.

That drawing is the exact same artwork as that found in the Service Manual though. Has more accompanying text though, which should prove helpful.

See how the drawing shows it being installed pointing straight up? With the belt then routed through the actual seat side panel, what happens when the seat is adjusted all the way forward or back? The belt is then not pulling in a straight position as it was engineered to do. Or am I completely missing something here?