Here's the deal,,,as i have a very rare 69 GT fastback,,if it is a "GT" car it will most likely be a H-code or better,,although i have seen one factory 69 F-code GT coupe here in Louisville,,But bottom line is it MUST have the buck tag on the body and MUST say "GT" on the tag.No exceptions.A Mach-1,,,"GT" is rediculous,,never made one as all Mach's came with all the stuff a "GT" car had. Just something silly that that salvage yard owner was told and he believed it.I run up on that kind of crap all the time here in Kentucky,,,Hillbilly junk.If it is a Deluxe interior car(63-B"),,then it is very rare.But putting it back the way it came is going to be more expensive. Mine is a 63-B car,,,with White interior.Better check out all the vin's and if possible get a printout from Kevin Marti to find out exactly what the car was before you buy it.