Are you sure it's a HO car??. According to Body tag analyzer should have M in the third group to be 326 HO.
The engine has a YM code and the engine unit number matches the PHS which matches the vin and denotes the car as an HO. Maybe it was missed? Already a strange code on there...? Or maybe you are right and it isn't a real HO...best we can tell it is but scams happen. As it stands I am not taking the car anyway but it would be good to know before someone else gets 'taken'...