I have read a few posts asking how many units would be needed as a starter to provide a reasonable game. Well, I have decided to chip in and make a suggestion. We played a small game last night with six regiments of foot per side, a couple of squadrons of cavalry and some guns for good measure.
I have put a link to our club blog with a brief overview of the game and some photos, just to show that small games can be had with these rules.
http://thamesvalleywargamers.blogspot.com/
I hope this is of help.