The chain may rub a little....
..but if you are careful the damage is minimal. If it rubs it will be against the metal rail and not the fiber glass. Now if you ask me, sometimes I have thought about an electric windlass at the stern....in either case windlass or anchor roller, cosmetically I don't think it looks good. I also had the same problem you did....so I bought more stern rode. Just be prepare to be flexible...sometimes I do stern first, some times bow, depending upon the situation. If I have cross winds, I have more control setting the stern and controling where I am going to set the bow. By the way, the reason that I have to drop the anchor over one side instead of directly astern is that I have Weaver davit system in which my dinghy sits sideways in the back. Good luck, maybe I will see you in the islands one day.abe