Thank you Gerry, Paul and Andy for the comments.
I have added two more views:
The well deck showing the capstan used to help pull in the submersible as it is brought inboard on the A-frame, and the support skids upon which the submersible's feet land when lowered into the stowed position.
The lifeboat and lifeboat davit seen over the top of the recovery winch. As noted in the first post the basic lifeboat hull was modelled in Delftship and imported. The details (keel, rubbing strip, grab ropes, bilge keels, canvas canopy), were all added in AC3D.
The buff coloured structure with the ladder rungs is the starboard funnel casing, and the item outboard of that is the starboard engine room ventilation inlet. These are mirrored on the port side.