Cut L angle to fit across the top between rib 4 & 5 and joggled the ends to fit behind the verticle L angles on the ribs. Afterward fit in in place and marked the bottom edge of the cross angle on the verticles and transfered it to the Locker Rear Panel. Clecoed the Cross L angle to the Locker Rear Panel then fitted it back in the structure. Drilled the end holes of the Cross L angle to hole it in place and transfered 2 holes into the upper rear skin.
Image 2) Pulled the cross angle out and transfered the rest of the holes down through the skin. For this process to work the holes in the Cross angle must be in a straight line.
Image 3) Pulled down the number 4 & 5 rib forms and marked where the angles would lay. Cut two angles to length and crimped the shape to the form.
