I'll try on this thread then 😊. You mentioned the paint being "thin." Can you tell me how this was concluded if not with a paint depth gauge?I think at minimum the car needs a detail.
Then it just gets better protected as you go up. Ceramic, PPF, PPF+Ceramic.
There is some validity in doing nothing and respraying it before selling but I couldn't personally live with the blemishes and the car not being nigh 'perfect'. it would affect my overall joyful experience.
The real truth on how robust the paint is will take most of this year and several hunded UK owners reporting back on it. It might be too late for some but this is all just down to personal wishes and finances of course.