I set up the right aileron for gluing. I used three location points for the leading edge of the main spar (datum -A-), two to align the bottom of the main and false spars on the same plane (datum -B-) and one to align the main and false spars inboard (datum -C-).
I don't recall where I saw the rubber bands and s-hooks for clamping the spars and ribs, but I'm sure I didn't come up with this ingenious idea.