Leather cabriolet seats in a 3-door hatch?

[Choppin]

I'm the previous owner of Dazzahdi's car, I can't really help with how they where fitted as the previous owner fitted them and never removed them to see how they where fitted, I believe ther where spacers between the seats and the mounting points and the door cards are convertible door cards, only thing I could see that was different was the little hole on the top where the little window at the front would normally be