Iowa requires registration, capacity numbers and decals on the hulls of all canoes over 13 ft. I really don't want to paint minimum 3 inch "contrasting color" numbers all over my freshly restored classic. Looks like there may be some wiggle room in the regs that allow the numbers to be "otherwise affixed". Considering "affixed" side panels that hang from gunnels or some such alternative. Any experience with alternatives? Thanks