Sect 10-11, Steps 6 & 8: Machine countersunk Battery Angles for flush rivets to retain nutplates - then riveted on the nutplates. note: 2 are are different #/size thd. (also 2 locations are NOT used as in RV10 on same parts).
Sect 10-12 - Separated and deburred all edges on Bellcrank Ribs. Deburred edges on F01406B Bulkhead. Cleco'd Bellcrank Ribs & Battery Angles together to Final Drill #30 holes. Dimpled flanges for Battery Bulkhead also.
Pic below is mock up assembly prior to scuff, clean, prime... Still some more dimples and nutplates on bulkhead.