Well, the 5th digit of the VIN will tell you the engine. If you post or PM me or Veronica the complete VIN we can give you a close date within a day or so. I have the Mustang Production Guide books listing VINs and build dates and Veronica keeps a list for herself.
As for the original color, interior, rear and
tranny if the car has bee restored a few times then that info may be gone. You may be able to find some of the info if you think it's still the same color as the factory or you can just get a tag made up with what the car is currently. The DSO would be the hardest and most likely will never know.
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1968 Mustang coupe, Acapulco Blue, 289 2v, C-4, Power Steering.
Hopefully a 1969 convertible or Sportsroof (non Mach or Boss) for next Mustang project
Trying to find my father's 1973 Mustang Grande he bought brand new. 3F04F126773 last known registration and title was in New Jersey, 1982.