Another brief update:
I have added the rostrum and some more superstructure bits. The metal pieces are some 1/2400 scale ship's boats that I have hoarded for a long time. They are produced by CinC ( website ). 1/2400 might seem too small for this 1/1200 ship, but they match the original drawing almost perfectly; I suspect they are a bit too large for 1/2400 in the first place. But they look the part!