passage making 28-32 footer
Depending on where in Michigan you are, I saw one of Thomas E. Colvin''s boats at Torreson Marine in Muskegon, MI. Thomas Colvin makes some wonderful boats, that are seaworthy and sea kindly. This one has been cruising (according to the owners) and is outfitted with a lot of equipment already.
The model is called the "Saugheen Witch".
If you goto the Colvin web site you can get pictures and specs for the design.
I believe the site is:
Hope this helps,