Started the day riveting the skin on the right forward side. Started the lower longeron and after a couple of rivets I realized that the lower longeron should wait until the bottom skin goes on. I drilled those out and then had to drill out the entire lower longeron on the left side that I had riveted yesterday. Finished the right side and then worked on getting ready to do the bottom skin. This took a little preparing to make sure all the holes were match drilled. I prepped the skin, alodined and primed. After the primer was dry, I installed the skin and clecoed the back edge lesving the front open. I mixed some Proseal and applied the the bottom skin and then peeled back the side skins and applied the Proseal. Clecoed every hole. I had Marsha help me turn it back upright. I was able to finish all the side skin rivets. The only rivets left are on the bottom and I can't reach solo. I moved on as if the thing was completely riveted. Mounted the aft deck and drilled. Mounted and drilled the F-683 gussets. Drilled the seatbelt cable attach brackets. Shaped the seatback gussets and finish drilled the side rails. I have a batch of things I can now prep, Alodine and prime.