some ideas:
Okay, don't know the hardware that well, but consider these thoughts:
- if it's just confined to the motor, Sadoun sells replacement motors
- go BUD harvesting, and look for one with a similar drive ... or a totally different one you could use
- the front page of WSI/Galaxy has a 24" on sale for $30; entire tube 'n motor
- post a picture or three - never know, someone here may have one ... or a far better idea! - :up