Brushless suggestion for Hellfire

I know it's not even out yet but I'm putting a Hellfire on layaway. The listed weight is 9.2 lbs factory. Now what I'm thinking is 12-16 cells, possibly more depending on the speed I get. I'm currently thinkiing a Lehner Basic xl 2400, 1940 XL 8 turn and Wanderer XL 7 or 8 turn. For a controller, I'm not sure what kind of amp rating I'll need for it so any suggestions there would be appreciated.