I've searched and can't find anything on this, so here is my question. I building a taildragger, and have riveted the U-00018 tail spring housing to bulkhead F-1412; and have riveted Bulkhead F-1412 to the rear fuselage skin F-01479. I have carefully inserted that assembly into the aft fuselage structure. Now it is a LONG way down there to buck or back rivet the bottom of bulkhead F-01411 and especially the rivets on each side closest to the tail spring housing which is bolted to that bulkhead. Has anyone done this? Suggestions much appreciated. Thank you. I am a first time builder, so I seem to struggle with a lot of things... and appreciate all the help in this forum.