I found an excellent primary source strength return for the American Southern Army right before the battle of Guilford Courthouse. It included actual strengths for many units, including the militia brigades (which most secondary sources get very wrong). Due to that find, I was able to update the orders of battle for Guilford Courthouse for Volley & Bayonet (both at wing and battalion scale).
Here are revised Orders of Battle for the two game scales:
And here is the original strength return (click for larger image):