Wow! Just finished reading the thread and am thoroughly thrilled by your build. I really enjoy the philosophy behind people's builds, and yours is a great example. I'll be following along as you move forward.
I can't imagine how many hours you must have put into the planning (many more than the building, I'd expect). I get close to overwhelmed at times with the 20g that I'm working on--this obviously blows that out of (into??) the water. However, I find the planning to be just as much fun overall as the building, so I envy you the chance to dream/design on this scale.
Anyway, enough rambling, and congrats on your recent milestones!