As we seem to be going through a mini resurgence of horse & musket, I thought now would be a good time to re-ignite the 'what-rules-and-what-bases-do-we-use-for-our-6mm-WSS-armies' debate.
I propose using the Might & Reason off-shoot Sun King, and basing as per the bases supplied by Baccus with two bases and 48 figures representing one infantry battalion.
Alternatively, there is an Age of Eagles off-shoot (Age of Honour) which looks quite promising. That's from the Fire and Fury stable. Age of Eagles is a very good 15mm Napoleonics rule-set. Age of Honour and a scenario for the battle of Oudenarde can be down-loaded for free from Sam Mustafa's web-site.
"A wasted youth is better by far than a wise and productive old age" - Jim Steinman / Meatloaf