I don't know the car. We need to know the last 3 number of the VIN to identify it. Seats are easy to replace as a set. That has Summit trim, standard on the non SE cars. It IS. NOT half leather. It is cloth and vinyl, although the vinyl does a better job of immitating leather than proper leather in some cars. Ebay has plenty of replacement seats.
No idea what is going on with the paint on the rear door.

Id be asking questions (amongst many others) about why he has not had it long and also why cleaning the shit out of the car before taking the photos was such a chore that he didn't bother!