I have a Scorpion 4525-520 Ultimate I purchased off of here. I was going to put it in my Rave but decided against it since I'd have to purchase a new ESC (currently have a Jive 80) and don't want to spend the money at this time. Didnt really think it through...oh well.
Anyhow here is the motor I purchased:https://rc.runryder.com/t760187p1/
Motor appears to be in great shape. I did fit it to my heli and ran it to make sure it works. Shaft is 6mm and about 21mm long.
Looking for $180 or best offer shipped to lower 48.