Has anyone ever had to put new skins on flaperons. I am doing this on a model III. Does anyone know what rivets are used to rivet the skin to the spar? The manual says Aluminum rivet. Is this just an aluminum pop rivet from the hardware store or something better. Also, if anyone has ever done this, is there any techniques used to do this job? ie gluing the foam, aligning the spar, holding everything together while the glue sets. Thanks