Congratulations on a good day of diving and some great pictures.
It is no fault of yours, but the photo of the anchor on the starboard bow used as the attachment point raises some serious issues. That line was not placed using materials provided by the local preserve committee that usually places a line on it.
The problem now is that there is virtually nowhere left to safely attach a line to the Sandusky. The line attachment shown in the photo has more than one problem. It is at the bow where any scope in the line has potential to ensnare a part of the bowsprit in calm water at then take it off when water is rough or something heavy is attached (a steel boat). The bowsprint is unique and irreplaceable. Hooking it to a fluke on the anchor poses the serious and likely possiblity that the port side fluke will be lifted high enough (even 2 or 3") to actually and slowly work the anchor over far enough to let it slip over the starboard side. That may not damage the Sandusky but it will not be in its original condition. Unfortunately, there are few other good points to attach.
The anchor shown in the photo is not intended to hold anything when in a stored position. The anchor is meant to work when embedded on the bottom of the lake. That way the anchor can "dig" in to some extent and the heavy anchor chain adds to its holding power as it is "draped" along the bottom. That will not work if it is stored.
In short, the future of the Sandusky is in serious trouble. Its condition is in progressive decline. Because it is popular and well within recreational limits, most every diver wants to go there. Sadly, that may be what destroys it.
The local preserve committee is working on a plan to place a cement anchor block off the port stern, possibly this fall or early next year.
It can use donations to help this happen. If anyone is willing to help, donations can be sent to Janet Peterson at the St. Ignace Chamber of Commerce.
Thanks for the photo and the opportunity to talk about this. The local preserve committee hopes everyone has a great time diving in the Straits now and in the future.