1. The Redcat Volcano EPX parts will work for it http://redcatracing.com/itemdetail.a...no=VOLCANO-EPX You can get parts at www.clermontmotorsports.com or www.allaboutfunhobbies.com They are also on the forum to talk to. They're both very dependable guys. Hobbytown USA is starting to carry redcat parts, so ask your local hobbytown usa.

2. If the limit is 15 turns, you can use a 15 turn, 16 turn 17,18,19,etc. You CANNOT use a 14turn ,13,12,etc.

5. You're going to need to lower the gearing for a 12 turn motor. I'm not sure exactly how much. I would try a 12 tooth pinion and a larger spur gear and check the temps, if you can't hold your finger on the motor or esc for 5 seconds, it's too hot.