I'm going Artizan for the Pikes I reckon. 18 quid for 20.
Rufus, did you buy 2 boxes of the WotR? they say that you can only make 18 billmen per box.
If I could get away with one box of WotR for some Billmen, and the Artizan pack (plus some more, or borrow some random pikemen from someone) for my 2 infantry units, I'd be pleased.