I want to make panels for my full sidelights at front door entry. My plan is to use 1/2" lead H came for the frame. Will renforcemet flat 1/8" bar be sufficent if placed at thirds? The finished panel will be 12 x 78 inches. The longest 1/2 inch H came I can find is 72 inches long. Should I divide the came in thirds along the long side of the panel as well so the points where the came frame is soldered is where reinforcement will be placed?