Most interesting indeed. I think F may be a rack of boarding pikes - though it seems unlikely that such weapons would be painted white, as they appear to be in the pictures. A has me baffled. The caption on the middle photo makes reference to a "cage around the capstan"; I can't recall having encountered such a thing. I don't think it's a rack of capstan bars; as the holes in the capstan itself indicate, the capstan bars would be much heavier - and probably longer. For a minute I thought it might be a rack of gadgets for handling shells. The narrow parts at the ends might be handles, and the shells might fit in what appear to be holes in the "bars." But shells for the guns of this ship would have been bigger than that.
Those are fascinating pictures, which emphasize just what an incredibly complicated project a really thoroughly detailed model of such a ship would be. As usual with such pictures, much frustration comes from the fact that only one end of each rigging line is visible. On the left side of the first picture, for instance, the lower end of a heavy piece of standing rigging is secured to the inside of the bulwark by an interesting iron fitting that seems to be a combination of a quick-release fitting and a turnbuckle. I don't recall having bumped into such a fitting before.
This ship is really outside my period of greatest interest. Maybe somebody else can help more.
Youth, talent, hard work, and enthusiasm are no match for old age and treachery.