None of Barry and Clarence's rule sets are very strict on "army composition." They feel - and I agree - that Army Lists tend to lead players toward min-max combinations for tournament play (and resulting unpleasantness) and not to historical force mixtures that may not be ideal on the table top.
The best suggestion for army composition I can think of is to look at orders of battle from the War of Spanish Succession or the War of the League of Augsburg and see how the Danish contingents were included in the allied Army/armies. That should give you a good idea what your contingent against the French would look like.
The first place I would recommend looking is the Nafziger Collection
here. There may be some inaccuracies, but it will give you an idea of where the Danes fell in that sort of thing.
The other suggestion is to pick a period battle that is your favorite; perhaps one where the Danes did something suitably smashing (or infamous!) and build your force around that. Churchill's British collection is built that way. He picked the Battle of Blenheim and built the British contingent for it.