Edit 9 February, 2020: I originally started this thread to ask questions, but since I actually started showing WIP photos in it, I figured I'd just make it more about that, so it's now in the WIP section.   Quick question on this plane - I know the flaps were plywood, the top side of which was unpainted. However, Jerry Crandall's book says the back half of the wing undersides were natural aluminum, except for the ailerons, and even shows the flaps silver in the color pages. So....were