That would be great, Tom π
My “vision” for the “ultimate GP header” would have it structured like the footer widgets, where on can select how many “header widgets” one wants. There would then need to be three new widgets: GP site logo, GP site title and GP site description, all pulling from the info set up in the Customizer π Drag them to the desired header widget locations, along with any other widgets that fits your fancy.
I know you are loath to code bloat, but I can always dream! π And no need to build the header with a page builder!