Wow! First of all, I'm a bit jealous of your awesome living accomodations! Growing up on the coast, the idea of a houseboat-type thing has always fascinated me.
I think your organization techniques are superb for the space that you have. Everything in reach, yet tucked out of the way.
And, here's hoping that you get a desiganted space when the renovations are completed! Think of all of the cool things you could sew to decorate your abode! Plus, you need to make some way cool clothing appropriate for entertaining. I'll be checking out your blog to see how things are progressing
ETA: Okay, I just read through your blog and I'm a bit less jealous - What a load of hard work (and the bit about your first attempt at a crossing was heartbreaking) you've dealt with so far! Fortunately, you don't have to go it alone, which is so much nicer! Here's hoping the obstacles become smaller as the project progresses!