I am considering buying a Hunter 23.5. The boat is in generally very good condition. The one cause for concern is that both the rudder and keel show signs of having been run aground. Both have received very rough patch work. The thing that is of greatest concern is that there are cracks in the hull near the forward part of the keel slot. I am attaching a photo. The crack of most concern is that along the left side of the photo - it appears to be rather substantial. I am concerned that when it ran aground there may have been damage to the pivot and the surrounding hull. Unfortunately, I can't get a good look at this area because it is sitting on the trailer. Has anyone had any issues with this area of the hull? Thanks!