Will do. I don't know yet how much we're going to detail out the underside of it. After cutting the hole in it the hood it seemed pretty flimsy. It seemed to flex corner to corner diagonally. That's why we boxed the outer sheet metal to the inner structure. Once we did that the hood seemed as rigid as before it'd been cut. The use of brake line tubing was to create a raised lip around the opening and to further strengthen the sheet metal. Plus it had the added benefit of not having portions of the opening that would have been thin flat metal.