Custom or Best Out of the Box

Now that Brad Harrison bit the dust, I'm not sure what to do next. The one B-rad I got is the best instrument I've owned, but that's history now.

Who will take an order for customization from an amateur like me and how much is it likely to cost?

Barring customization, can you give me some opinions on the "best of breed" out-of-the-box 10-hole diatonic? My goal is traditional Chicago blues, but I really like the sweet tones of stuff like "Georgia On My Mind" and "Blues in A Major", etc.