Clecoed the bottom wing skin back on, then spun the wing in the rotisserie right side up. Using smaller c clamps we tried to clamp the aileron in position. Better, but no where near secure enough to let it go without holding it, so not good enough for making adjustments or marking either. It looks like the aft edge of the top wing skin might need to be trimmed, but I would very much like to avoid this if possible, by judicious placement of the aileron hinges. We just need to find a way to hold the ailerons in place during alignment.