Drilled out 1/8 rivets from Southco cowling receptacles and replaced with correct 1/4 rivets (my bad). Primed 'dog bones' on station 1 front spar mount to cover bare metal from trimming. Cut out Station 3 ABS closeout panels. Installed small pulleys for aileron cables on Station 3 uptubes. Cut slot in rear fuselage closeout cone for elevator horn.