I think the 2 discrepancies you listed will likely help the sale rather than hurt. Nearly every 1st gen known to man now runs a cowl hood, lol
Sadly it's become so accepted that I've run into people that think a flat hood isn't correct so there is no way it could be a Z
All kidding aside, even with those minor things fixed it's still too much money. If I were looking I'd be more concerned with some of the other issues though with a price tag like that.