From what I've read, if you never change your avionics, it's more cost effective to get a harness made by Stark, Stein, or others (assuming you don't want to wire it yourself). If you ever plan or even think you'll make changes in the future, the Approach hub will pay for itself.
Mark,
Did you polish your rudder pedal tubes? They look the normal white in the first picture, but polished in the third.
Dave