I was at the surplus shop and picked up a dead servo motor for $30. It's missing the carbon brushes, but I will order some from Ebay.
I believe it's a wheelchair motor, but it is a true servo with a skewed rotor. There's no cogging and I can make it turn smoothly with 1v.
The only problem is that I cannot find any information on Electro-Craft's web site. I would appreciate it if someone can provide me with specs on it.