Beautiful frame and I am anxious to see the build. I'm not sure I'm into Frenchie forks, but am open to a change of opinion. BTW will it take 700 wheels, which IMHO have advantages over 650?
The Stag from Rawlands is built around 650b wheelsets, while their Nordavinden model is the 700c choice, except for smaller sizes.
Then the smaller sizes are also offered in 650b.
http://www.rawlandcycles.com/