Unless the documentation was a LOT better back then, I don't give much for your chances. As I understand it from what other members have posted, things are wired up to a factory schematic without any regard for wire color codes.
Also, if my experience with FR Georgetown is any measure, the "Owner's Manual" is so generic that it's only good for lighting your campfire.
Frank and Eileen Damp -Anacortes, WA.
ex-pat Brits (1968).
Two male yellow Labs - Bailey (11 in 7/14) and Angus (12 in Feb 14), both adopted,
2002 Georgetown 325, Ford F53 with V10