Have you considered a Davidson (of Seattle)?
They will build steel, lugged steel, or titanium. Lots of experience, they've built everything.
www.davidsonbicycles.com.
I'm about 1.5 inches shorter than you; they did a great job fitting me.
Also, if you're in the market for a custom bike, do you know about the North American Handmade Bicycle Show in Portland (weekend of Feb 9 and 10)? If this is the last frame you'll ever own, might be worth your time to come up to the show. Lots of custom builders will be there, including Co-Motion and Davidson.
Back to your original question -- Co-Motion would definitely be on my list for dedicated tourer.