As I read this I feel like a warped loom and am in need of electroshock.

A possible resource (you all are probably already aware of this) is The Mannings Handweaving School and Supply Center near Harrisburg, PA (between Gettysburg and Harrisburg)
http://www.the-mannings.com/

I've walked through their shop and they have a dozen looms setup for classes and what seems to me to be a large supply of yarn ect.