Set the 5mm gap from the Aileron and remove the Aileron. Mark the hinge ends on the flap.
Image 2) This is because I made the mistake of riveting the bottom skin flap hinge. Trying to see if I can fit the flap hinge to the flap. Got it temporary clecoed then took out the hinge pin and set 5 A4 rivets in the flap hinge. Put the pin back in to check fit and alignment. Made some adjustment and clecoed the whole length out to the A5 rivet size.