Well, this self quarantine gives me no other option than Semiramis, music, movies... Attached vents, stairs, anchor windlass, winches, masts and so on. Maybe vents are a little big, but they are fantastic stuff. Not expensive if you think that are manufactured on request in a 3D printer. But they should be about 70cm wide in real life, except the four of engine room, more or less 105 cm wide. Maybe not too big, considering that engine vents for a WWll corvette are more than a meter wide. Stairs are all cardboard, cheap and easier to work than photo etch pieces. windlass and winches homemade, doing research. Now must be added cranes, boats, antennae, rigging, etc.
It is looking really good. The main thing when considering something like this is to forget the thought that "I could never do that!" More often than not, most people could do it if they would just try!