Hello!
I have studied the Waterway Dimensions[1].pdf from BW and I think we can live with the fact that we can´t go on the entire system. If all goes as planned and we chash in all we have here in Seden and moves to a NB to live abord we probably need the space. It will anyhow be a big difference to move frome a house of about 260 sqmeters plus a motorhome into a boat of aproximately 30 sqmeters.
At present we plan for a boat with, from the rear: office 2meters, bedroom 2.5m, bathroom 1.4m, dinette/guestroom 2m, kitchen 3.3m and salon 5.2m. As I am 191cm (6ft 4in) tall I will aim for a boat with very thick bottom plate to make ballast more or less unnecessary thus giving more headroom inside.