Also, internal rear brake routing is on the wishlist but may or may not be practicable.
How would you go around the BB? Even with a T47 BB I found you need quite accurately drilled breather holes to have enough space for the hose to make the bend around the BB.
I'm intending for the hose to exit the DT on the NDS side, then be external along the chainstay. Routing it inside the BB and along the chainstay does look great but it's too much hassle to make and install/maintain.
How would you go around the BB? Even with a T47 BB I found you need quite accurately drilled breather holes to have enough space for the hose to make the bend around the BB.