Had some issues with the back riveting and so had to drill out and replace a few rivets. We added weight to the inside of the fuselage (travelling tool box and a can of cleco set on 4x4s) and that seemed to help get consistently good rivets.
Worked solo to rivet the side skins to the bulkheads and then started on the J-channels. Did every other rivet working from center, alternating forward and aft. Once all four J-channes had rivets, started filling in the remaining rivets.