the pads that come with the KCNC brakes suck. use swisstop shimano type. they flex more that DA or campy but if you can lock up the wheels what more do you want. not advisable for clydesdales.
skewers are good but really tighten them up. most first timers don't apply enough pressure.
any aluminum cassette is for racing only. but all you guys know that.
fairwheel is good but shop around, they aren't the cheapest.