The answer is it looks pretty good, and weighs in at 3.48 MB, probably 4.5 MB or so by the time I'm done. For a 45 or so page PDF, probably 55 by the time I'm done, with a fair number of illustrations that haven't yet been optimised for their final size, that isn't too bad. And if I can get someone to run it through Distiller for me as was done for Diana it ought to come out a little smaller, which will help.
Overall moderately pleased - hopefully I'm well on my way to my (revised) goal of getting the first draft finished this month, if nothing too catastrophic goes wrong.