Just to be clear - you intend that we not even do compositing digitally? I wouldn't call that touchup, but I can see how it might be considered digital shenanigans :-). I would lean toward scanning text as an overlay separate from the linework, and sticking the two together in an app, but if that's "impure" for this competition I'll skip it. Any physical compositing should be ok, though, right? Mylar layers, post-it notes, holes cut in paper to show an underlayer..... So long as it makes the transition into digital in one go?