In order (from least descriptive to most):
VIN - Engine and Trans, model, and the top level package (Grand Coupe etc).
Fender Tag - The majority of the options (Body/Roof/Interior color, Radio, Glass, stripes, sub packages like Light Group, Rallye package, mouldings etc)
Broadcast Sheet - All the options (Type of steering wheel, color of the horn pad, diff, gear ratio, alternator, etc).
They didn't keep detailed records back in the day (or they have been lost) so if all you have is the VIN you will never be able to verify all the options your car left the factory with. If you were extremely lucky, it's possible a previous owner entered information about your car into the Hamtrack Registry or even that a broadcast sheet for your car was found in another vehicle. I would contact Barry Washington and see if he knows anything about your VIN but it is a long shot to say the least.