I've had very good luck with The Vintage Wheel Shop in Sonora, CA George Carrigan, 209-533-0468.
Also, many use Stutzman Wheel in Baltic, Ohio. This amish wheelwright makes wooden wheels for just about anything, Model T's wheels by the dozens. 330-897-1391
Thats where my sisters husband and his family is from. They met at OHIO U. in Athens. ws