Riveted side skins to bulkheads and wasn't happy with the fit. Drilled out rivets and used several shims to get the skins to lay flat against the bulkheads. Riveted bulkhead tops for the #3, #2, bulkheads. Riveted tail cone closeout. Installed rudder cables and pullys and finished up bellcrank channel. Deburred top skin and primed and clecoed to bulkheads.