That's super....with one exception. Once you go from inner to outer, there's no way to get back in without backing. That is solved by reversing the direction of the #11 switches and cutting different fitter pieces.
Here is the layout so far.
Oh crap!
My wife was calling me for dinner, and in a rush to get this up I completely forgot to reverse the single cross over.
I meant to put it in like you had it. You get the idea
Roger