Actually I have one suggestion for you that has not been mentioned yet. First off if you want a motor that is very reliable and gives you options for setup then spend your money on a Neu 1515/1y. Mike sells them right here on RCM for a fair price. In fact I have one on its way to me now. Of all the motors out there it seems to have the best reputation for reliability. Second check out Lutach's thread on high voltage ESC's and pick up one of his (made in China) 6s models. For the money and all of the rave reviews it seems to be a good choice for what you are asking. Then when you get all of that setup you can make your choice for new batteries to match the setup you have. That is the route I would take if I were in your shoes. Good luck with that...
