1965 Dodge Dart Charger

The rear carpet seems to have the right measurements. However on the upper area where the rear seat is the trimming is needed.

Question! On Mikaels Dart GT there was hole for the seat belts. BUT, What if the car wasn't ordered with seat belts. Were the seat belt bolts still in place or was that only when the seat belts were mounted? I know for sure that Mikaels Dart GT didn't come with seat belts when it was new!