Placed the skin on the bench and clamped the end of the skin where the the bend needs to be to the bench. With a piece of angle drilled and clecoed through the skin it was just a matter of giving the slight bend the skin requires to attach itself to the other skins. Fitted the skin back on and it fit beautifully. Match drilled the left side skin to the longerons and did the same bend required, fitted the left skin. Fitted the firewall in place and clecoed on the bottom skin.