Had a little time before bed time to get out and open up all of the holes in the right aileron.
Unable to do anything with the outboard balance arm rib until I get the square tube to make the balance arm that can be mounted to the ribs.
Marked the 22x22 hole location for the balance arm pass-thru.
Remeasured the flex hinge and learned that - instead of the specified 50mm - it is 48mm at the inboard end and 46 at the outboard end. Will need to confirm that this will allow proper edge spacing of the wing-attach rivet line while also providing proper spacing to the rear wing spar. Measuring along the top the "hinge", top flange and rivet line all meet spec.
For the left aileron I will cut my blank at least 5mm wide of the calculated DL. Better to have extra that needs to be trimmed than be too short, forcing a re-fab.