Dear Andrè, welcome!
I leave not so far from your desired C6 corvette, unfortunatelly I don't know him, but nex friday in "Crespellano" we've monthly meeting with our Bologna's group of American cars, if you ask him to come to "American Graffiti" at 20:00 we may help you to have over all view of this car and get some more information about this corvette.
If the owner can't speak english I may help him to be in touch with you.
you may just copy the follow in italian in the mail to him:
"Ciao sono interessato alla tua corvette e se sei disponibile il prossimo venerdì 10 giugno all'american graffiti di Crespellano verso le 20:00 un'amico può aiutarmi a mettermi in contatto con tè, chiedi di Stefano al tavolo dell'american cars con corvette C3 Bianco"
Translate means " Hello I'm interesting of your corvette, if you're available next friday at American Graffiti of Crespellano around 20:00 one friend can help me to contact you, ask for Stefano with Corvette C3 White".

If the Corvette's owner is interesting you may give me in a private message in this forum your contact so that we may contact you on Friday.
Hope this can help you in catch your dream.
all the best
Stefano