The Neu motors you can get from OSE and I think BBY racing. The 2s1p would be a good starting point. As you prop up, or want more run time, go 2s2p.
In series for a total of 14.8v. And if you really want to get squirrelly, and if your ESC can handle the volts and amps. Go for a total of 6s. That's 3s per side.
Others on this and other boards may have better suggestions. Now only if we can get them to speak...