yes you are correct about the red
[URL][URL]https://www.hamtramck-historical.com/dealerships/1968PlymouthDealershipDataBook-01.shtml[/URL][/URL]
But this is a '67 Barracuda not a '68.
At some point it got '68 rear trim on what appears to be a '68 rear deck lid.
The tail lights appear to be correct.