RE: esc selection help
With some soldering skill and minor modification, any esc will handle that current easy peasy.
Buy a cheap 30 a Turnigy or something, then buy 6 International Rectifier HEXFets, rated for 300-500 amps, and replace the stock transistors with those puppies. It is a bit of soldering, but its also the most pornographic nazi ESC in the world for less than 100$
Actually, its the most pornographic nazi ESC in the world, period.
I have never ever seen anything RC rated use so hot transistors. But they are avaible.