After painting I was in a mental block about going back to the wiring, so I decided to hang the stabs and take a look. While I was at it, I decided to fit the fin fairing, which turned into a more involved project than I anticipated, especially when I realized that the lineup would influence the handling of Osp. If the fairing was misaligned, she'd tend to yaw one way or another. Sure, I can fix it via the rudder trim tab, but, y'know.
Snap a chalk line from the pylon to the fin leading edge, then rivet the fairing mounting bracket.
I had been guessing where the fairing should go, finally I realized there was no exact measurements, let the parts tell me, and roughly outlined how much to be trimmed with blue tape.
Fairing fitted, I was able to mount and trim the stab brackets. They've since been powder coated white and look beautiful.