1973 Mach 1 Mustang Restoration Direction?

What do the car experts think? I have a car that has the original engine and drive-train still in it, I believe. I would like to restore the car to look as it did in 1973 straight out of the factory. The question is, should I restore it to exact specs (standard seats, standard doors, ginger interior with gold glow exterior, etc..) and what ever else came with my car? Or.... Should I restore it with all the bells and whistles that would have been offered that year (ie. mach 1 seats, deluxe doors, deluxe consoles, map light, etc..)?
 
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