'33 three window coupe, I will have a solid fiberglass headliner insert that fits from the front header to the bottom of the back window, smooth and ready to accept fabric/vinyl. I have bulk leatherette (vinyl) yardage that matches the seats and I assume contact cement is the right approach? For the compound curve area in the back corners do you cut into the apex, allow overlap, cut through both pieces at the same time, remove the extra material and then simply butt the material together? I guess an alternative might be to dust it with bed liner for texture, then satin black, but I know there's probably a straight forward way to cover it with leather/vinyl and have it look good. Any helpful tips from those who know??