Drilled and installed nut plates for rear upper and lower bulkheads.

Riveted nut plates to center console mount frame.

Fabricated bracket for wing attach covers.  Installed headphone jacks in wing attach covers.  Installed wing attach covers and wired intercom. I've since changed the bracket by extending it to include a flange 90 deg out from the sidewall between the two jacks to allow the use of a second screw. This eliminates flexing when plugging and unplugging the jacks.

Installed baggage area floor and back panels to see how it all looks installed.

Installed seat belts, seat pans, center console and seat cushions.