I'm in the middle of building up the same frame for a winter commuter. I got the frame used so the headset was already in place, only problem so far is that the water bottle mount limits how low I can install the FD. Here's a picture from before I installed the crankset (Race Face 53/39) and ran cables. Just have to install fenders, rear rack, studded tires and handlebar tape and I'll be all done. Enjoy your build, it's a lot of fun.