After had the first seat back all pilot drilled, I used the angle from the first seat to drill the parts for then second. I then drilled everything out to the final #30. After shaping and deburring, I primed the back-side of the angle. I didn't prime the entire part since it will get primed when I paint the interior. I scuffed the sheetmetal also so it is ready for later painting. I riveted the first assembly together.
