I can't vouch for the authenticy of the cowl tag, but I can tell you that if your friend does purchase this vehicle and it turns out to have a fake cowl tag and it is a clone, myself and my law firm can help him recover on his lost -investment value.
Http://www.dcdlaw.net/carfraud.htm or call me (Bryan Shook) at 717-975-9446.
I looked at the car it is beautiful, I hope it turns out to be the real mccoy for your friend.
Bryan Shook