You could also look at the 60mm medusa's. I have one in my Ste. They're only $9 more than a 50mm medusa. The 60mm will produce less heat. Highest kv = 3100 so you'll have to run 3s.
edit: sorry, just saw these aren't in stock either
Hi guys, thanks for all the replies.
I'll have to check out the novak line of motors. Haven't heard much about them and don't see many over here (Australia).
I'm really leaning towards a 1509 neu motor, if the funds can be found.
2s would be much easier but just have troubles sourcing motors in the right price range...... i'll keep on looking.