Just to update everyone, I have purchased them and played 2-3 games and they're excellent. They will be making an appearance at Historicon and on wargaming Youtube this summer.
I have been tinkering/adding some "advanced" rules, like some scenario-based Brigade breakpoints, optional variable movement, and commander personality traits. The biggest change we made is making kills only "half a stand" instead of a full stand. The final product is like 90% Saratoga soldiers, with a dash of Fife and Drum, a sprinkle of British Grenadier.