I can't speak for the car in question here, but as far as the selling dealer goes, I'd be leary of putting any faith whatsoever in anything they have to say in their ad. They have a 67 Chevelle currently running on ebay as well.
This one. I know the car Very Well. They bought it last month at Mecum for 55k and now have it listed on ebay for 80k. It's not nor will it ever be an 80k car, but that's their business, they can ask whatever they want. But...it is NOT a numbers matching car. The owner that consigned it to Mecum never represented it as numbers matching, in fact it was even announced on stage that it was not. Yet this dealer has stated in his ebay ad not once, not twice, but three times that it is documented numbers matching. Just sayin'...