@darthfozzywig: Sure, I'd say it is very similar in that manner to Black Powder. At the end of the day so long as you basing is consistent you'd be ok. I did the rules for 28mm … but it would work just as well for smaller scales with some adjustment to the ranges.
For me, and what I put in the rules (I'm treating each unit for me as a regiment … groups of units are brigades … but all that really matters is that you have units, and those units get grouped together):
2.1 UNIT TYPE, SIZE & BASING
Although this section provides recommendations on how to represent your units on the tabletop, it is important to note that the only requirement is that your units can properly represent the various formations used in the game. Units are categorized as infantry, cavalry, artillery or commanders.
INFANTRY
An infantry unit is represented in the game using 30 miniatures based six figures to a base, with each base being 45mm wide by 40mm deep. A total of five bases make a single infantry unit.
CAVALRY
A cavalry unit can be represented during a game as mounted or dismounted. A mounted cavalry unit is represented using 12 mounted miniatures based two figures to a base, with each base being 50mm wide by 50mm deep. A total of six bases make a single mounted cavalry unit.
A dismounted cavalry unit is represented using 12 dismounted miniatures based three figures to a base, with each base being 45mm wide by 30mm deep. Additionally, when dismounted, two bases of horse holders are represented. Each based of horse holders includes a single mounted miniature and three horses mounted on a base that is 80mm wide by 45mm deep. A total of four dismounted bases and two horse holder bases make a single dismounted cavalry unit.
ARTILLERY
An artillery unit can be represented during a game as limbered or deployed. A limbered artillery unit is represented using a six horse limber team, two horses wide by three horses deep, pulling a limber and gun. The first two ranks of horses, consisting of four horses with two ridden by crew, are mounted on a single 50mm wide by 100mm deep base. The third rank of horses consists of two horses with one ridden by crew, the limber carrying three crew and the towed gun, are mounted on a single 50mm wide by 150mm deep base.
A deployed artillery unit consists of two gun bases, each consisting of four crew and one gun model, mounted on a single 50mm wide by 100mm deep base. Additionally, two limber bases are represented, each consisting of one crew and one limber model, mounted on a single 50mm wide by 75mm deep base. A total of two gun bases and two limber bases make a single deployed artillery unit.
Note: Although two guns are represented when an artillery unit is deployed, only a single limbered team (limber and gun) is used to represent the unit when limbered.
COMMANDERS
A brigade commander is represented by two mounted figures (one general and one standard bearer), mounted on a single 60mm round base. An army commander is represented by three mounted figures (two generals and one standard bearer), mounted on a single 80mm round base.
2.2 BRIGADES
All units in your army must be formed into brigades. Typically a single brigade will consist of between three to six units, but using fewer or more units is acceptable. Each brigade in the army must have a brigade commander. The army must include a single army commander who will lead you to victory!
Hopefully that helps.