I have 6 fedoras. 3 are vintage (Stetson, Mallory, Knox) and 3 are customs (http://www.vintagesilhouettes.com/). I also have a couple of Aukbra's for daily wear, and some newsboys for the winter.
I would say contact John at penman hats.
All hats are custom to your size and he guides you on how to measure properly as well as sends you a mock up of the hat band so you know you are getting a proper size.