Seat side trim fix
remove trim, drill two tiny holes or heat an ice-pick and melt two holes near the mounting screw.
Seat side trim front mounting hole fix
buy a piece of aluminum C channel from hardware store. Use a jigsaw and cut as shown drill a mounting hole and screw unto the seat trim.
seat back pocket fix
Use high strength fishing line, framing screws, and a spring to secure the pocket and provide access without breaking original hinge.