Final-Drill #12 the bolt holes at the two nutplate locations along the lower outboard flange of the F-1042-L and -R Bulkhead Side Channels.
Flush the forward ends of the F-1013-L and -R Forward Fuselage Longerons against the inside face of the F-1069-L and-R Forward Side Skins, then clamp them to the F-1001J-L and -R Longeron Gussets. Match-Drill #40 the holes common between the forward side skins and the forward fuselage longerons. With the clamps still in place, match-drill #30 as many of the holes as possible in the upper flange of the longeron gussets into the forward fuselage longerons. Cleco, remove the clamps, and finish match-drilling the remaining holes.