You might want to get the frame headset and BB faced by a shop that knows what they are doing after painting. That goes a long way in the bearing adjustment department and makes a huge difference between "Ok" and "Swwwweeeeeeettttttt". Another thing we always did prior to build (along with the facing) was to chase all the threads for everything and slightly hone the the seat tube. All overkill probably in some eyes but man it made the build go nicely and the results afterwards were always spectacular.