And now, after about 6 hours of work, I've got a villiage!

These things are really easy to make, and surprisingly detailed. I was also able to find roads from Toschach Miniatures for a fiver; they also sell them in 6mm and 15mm scale.
I particularly like the church, which has a steeple at a jaunty angle in this photo:

But that's because the steeple is removable, and fits a 20mm x 20mm base, and may (I've not checked yet) fit a 25mm round or square):

I need to find a method to either connect or weight the roads, which tend to get knocked about in-game, as I found last night, but overall I'm satisfied given the time and money spent: $13 for the cardstock, $5 for the road file, plus ink. And I've got most of a table's worth of terrain out of it.