Yet another interesting piece. Do You by any chance have similiar info for 1657-1660 war against Sweden?
Unfortunately I don't know any such source for the First Northern war. Maybe something could be in DelaGardie papers (Delagardiska archivet; several volumes printed in 1830-40s), I will check
I got Vaupel Den Danske haers historie... It includes a part about the first Northern war. I don't know the Danish, so it will takes time to translate & understand about the army organization