YearoftheTiger,
Good sources of detailed drawings are the 'IPC' (illustrated Parts Catalogue) and the 'SRM' (Structural Repair Manual).
Originals (paper) are rarer than the proverbial rocking horse poo.... but they also exist on CDs. Those occasionally pop up on the well-known auction site, but maybe some of the readers here have them and would be willing to make you a copy.
Also see my PM.
CJ