The internal cabling pieces came in today.

 Brazing the cable stop to the cable housing.  The fit is pretty loose, so I like to flare the cable housing with an awl to provide a better fit up.

Almost ready to silver braze to the down tube.

 And the finished product.

The silver brazed reinforcements for the Di2 wire ports are on.  I'll polish them later.

 The 7 mm x 8 mm holes are done and test fit with a grommet.

I went ahead and brazed the hooded dropouts to the chain stays.  I gotta say, easiest dropouts ever, and they look great.  Very minimalist, which is what I'm shooting for.