Looking at the photos and knowing Flavias as we all do, this looks like it needs a lot of body repairs and a complete re-paint, the interior is shot, and the engine bay looks like it hasn`t seen daylight in decades, wrong hub caps, and what on earth is that tea tray on top of the dashboard ?
I own an injected Flavia coupe of the same year and see many issues with this car. Expect to rebuild the entire brake system, engine mounts, suspension mounts, cooling system + hoses, the head will have corrosion given how the engine bay looks, KF might need a rebuild too.
KF Flavias are relatively rare these days but that does not justify the price!
Whoever buys the car, be sure to install the missing oil line before trying to add oil!