A growing consensus is that it is better to have purpose-built bikes than a jack-of-all-trades bike. Touring and quick riding don't go together in perfect harmony and a lot of bikes that attempt to meld them end up as commuter bikes. Or totally awesome Randonneurs with names like Singer and Herse.
Why, it is the justification for N + 1, our guiding light and perfect excuse for having a garage full of bicycles.
Go ahead and get the Stanyan and build it up. After riding it awhile, you'll know which direction you'll want bike #2 to go. And then bike #3, #4, and so on.