Squeezed in the 4 rivets where 603/609/405 tie together. These are a bit of a challenge to get to, so wanted correct rivet length for sure! Rivet callout (-7) was a bit short. Went up one rivet length (-8) and cut it back just a bit. AN470AD4-7.5 rivets would have been ideal, but they aren’t supplied in the emp. kit.