I thoroughly understand your project – I too am fascinated by that transitional period of warfare, and alternative history as well. Lovely write up – the maps and photos are perfect. Also thought your use of the wee lifeboat marker was quite clever. Even crossing the English T, the French still couldn’t win eh? Très triste.
If you ever finalize your modifications to B&R, would you consider posting them? I haven’t played B&R yet (my predreadnaughts are for a trifle later period) but your additions sound interesting.