redcatracing.com is where you would find a good, inexpensive brushless system, they are out of stock right now but should be getting them in very soon, they are very much worth the wait.

i ran an 8.4 in mine and had no problems and i am sure the 9.6 would be fine too but just stick to the 8.4, the mah doesnt matter.

they come with tamiya connectors.