I've just agreed a deal on a 2013 5 series frame set. Like you I'm using a 6770 Di2 group set that I already own, Rotor 3D chain set and HED Stingers! I'll be ordering 6800 direct mount brake callipers and not using the Bontragers.
It will be interesting to see how you build turns out
Ha looks like we are going to have VERY similar builds!
I am tempted for 6800 calipers myself; I was going for Swisstop pads anyway. Are Bontrager brakes really shit? I was wondering if its worth upgrading to compression-less cables for brakes and use the Bontrager calipers; might just get normal cables and 6800 callipers (with swisstop pads) instead.
I was also unaware of the fact that these frames cant take Rotor 3D+ which I was planning to move from this bike: http://www.pedalroom.com/bike/rychtarsk ... -max-16759
I have ordered the new 3D 24 instead with less horrible graphics. The frame also comes with bearings!
Ozrider thats a lovely build! Your seatmast in the photo is white but on trek website it shows black .. I must say Trek really need to redesign their graphics/paint jobs OR offer Project One for series 5