Thank you. I look forward to selling you a copy when the time comes.
The approach I seem to be settling on is a sort of hybrid: A short intro and timeline at the beginning, and a couple brief narrative pieces in the main body of the work. The bulk of the setting will be presented indirectly, through the individual spacecraft descriptions. Most of the spreads will be paintings like this: [link]
I figure only about 25% will be cutaway drawings. My structural approach is very much inspired but the old Terran Trade Authority books, particularly 'Spacecraft 2000-2100 AD'.