Strange story this one offered by COYS. In my modest opinion it is mix of fantasy and facts. A lot of incorrect data about engine specs (for GT Am) no trace of VIN nor body specs for offered car extremely expensive for one without story, racing curriculum and not even homologated (as I understand from the given text). And then, photos. The fourth one is not GT Am but 1300 GTAJ “Stradale” (N° 24) and has nothing to do with other two, again different between them. Body work in question is late one without visible rivets on the color photo, and b&w image shows strange car with back lid spoiler never present on the 65-73 car (some Gr. 5-Angelini silhouette had something like that, but later), and certainly non Alfa wheels. Good material for deep investigation. Anyhow, as RIAR number is visible, it is possible to ask them about this specific car. Obtaining the VIN, and writing to Centro Documentazione, also Marco Fazio could answer some vital questions.