I have a 62' and also have the same door handles. (now wondering if my handles are year appropriate)
I have key holes on both passenger and drivers side. The passengers side is an upside down drivers with the same lock set.
My passenger side door used to lock itself when I slammed the door. I turned the interior handle to be straight up and down with the handle in the down position and that seemed to help.
I always leave one of the wing windows unlatched but closed so if I am locked out I can push it open to unlock the door.
