In 1963 my Dad crashed his FB, 28.5-foot sloop at his berth in Jack London Square resulting in similar damage. (The transmission was in forward gear but he thought he was in reverse to check the boat's speed.) After the repair, he had a quarter-inch thick piece of curved stainless steel about 3 inches wide and 12 inches tall installed at the point of collision. Thus, reducing the chance of hull damage in a similar future collision.
This inspired the installation of a stainless-steel plate on the Coot, although this is better for reducing possible damage to the paint caused by the anchor.