Using HobbyCity stuff it is relatively cheap.

Turnigy 100amp 12S Speed Controller - $100
HXT 63-74 - $66
Zippy-R or Zippy-H 4800-5000mah 10S-12s LIPOLY - $250

That setup is around $450 after shipping. 12S is probably a bit too much for such a high KV motor tho. It will probably pull right around 100 amps on a 22x10 at full throttle at 12S which might be too much for the motor and ESC. I might give it a shot at 12S on the bench first as the HXT 63-74 is a very affordable motor and should work fine if I were to dial it back to 10S. I use the 63-64 in my bobcat and it is has been a good reliable motor but I havn't pushed it that hard. Otherwise, I'll use a AXI 5345/18 for 12S which is a $200 motor and the amp draw will be more reasonable.