Well not SO cheap but still cheaper than I've not did that!!
I was able to find a toast Neu 1515 for $65 buck. (tanks to brushlessboy16)
After calling Neu to know the repair cost, they tell me that I could have a brand mew one for half the price.:rolleyes:
I only need to make a flat spot on the shaft^_^
My Medusa still run perfectly but now I have a good spare motor.