And people ask me why I am considering steel for an offshore
boat...G

Go with aluminum if you can. No compass problems and you can make
emergency repairs with hand tools and sheet metal screws.

I saw a 60 foot sailboat that had gone ashore on a rocky island and
had it's keel torn off. One side was pushed in three feet for about
half the length. Still, it could have been made watertight and
floated off with about five feet of duct tape. A steel hull, although
stronger according to some measures, would have been in pieces after
that treatment.

--

Roger Long