Personally I think Daughters being capital-only rather stupid idea. As recruitable everywhere they could be useful as cheap researchers...
Medium cavalry would be nice. Especially as English & Scottish knights usually weared significantly less armor then their continental colleagues... due to the fact that their countries wern't exactly rich.
Hobilars of Scotch border weared armor but less than even local knights... though they usually fought on foot (but we need not go into these details). 2-sword infantry, I think, would be too much - or at least will look that way!
What could be done is to give foresters some leadership. Stealthy bowmen I don't think would be particularly useful & making Wardens non-sacred would be against the standing theme of the nation.