I have been lucky enough to have developed a great relationship with Mark Grohe with 2DogRC . (
www.2DogRC.com )
Here are a few picture of the power system and controller. I am very impressed with the quality of everything i have gotten my hands on.
2DogRC also carries Lipo transmitter packs (1800 and 2500mah), voltage regulators, chargers (up to 10S in series now) and an array of other electric odds and ends.
Specifically here is the nuts and bolts of my setup:
1.40 power sytem 16 turn( XM6350CA-16), 235rpm/V, 10S, 470 grams
90Amp speedcontroller 44V capability