Lightshock_studio (love to find out your real name), Aric and Richard, thank you so much. That means a lot coming from you guys.
Richard, the NPR kit is too rich for me at the moment, but the built in cell edge render and some painted textures are beginning to work well. I think I can get the look I am after with some clever compositing of different passes. One thing that would be nice is to be able to render out a separate edge pass. Not mush trouble to just render with a white base shader overtop, though.
More progress soon.