I borrowed Phil's longeron yoke to allow me to complete the dimpling of the firewall edges. Clecoed all the gussetts and angle braces back in place. Riveted the bottom edge of the firewall and startd up the leftside. I was backriveting when the steel plate underneath slipped and caused me to have to drill out a few rivets. I will just start over fresh tomorrow. Also received my new pneumatic squeezer.