First welcome to the site - hope you find the information shared here helpful in your concours related efforts
Air conditioning was not part of any other package so signs and evidence on the car may provide some clues (like the dash mounted AC ducts but there is allot more) to if it was originally an AC car but the Marti report will provide "proof" if it did or didn't come that way from the factory. The Marti report will also help with the hood. Looks like someone may have just slapped on the exterior decals since there is no ram air duct work on the hood or the special air cleaner either. Possible the front and rear spoilers/wing may not be original to the car either.
Looks like the sport roof got a typical used can rattle paint job in the engine compartment. In addition things like intake, coil, dist and a fee other things have been changed out over the years. Not sure what the resistor is for on the passenger side shock tower - would need to chase the wire to see where they lead
