Our next visit was on 29th May, as the builder needed the wall lights we'd bought.  The inside has advanced, as you can see:

Not very sharp, but you can see the bookcase they've nicely built above the steel oil tank;  it will have nice doors on it later.  Then here's some work done on the seating which pulls out to make the side cabin's double bed.

The engine is not installed yet so not a lot more to see of interest to publish;  we took lots of pictures of engineering details like the bow thruster and cupboards.