Help me with a few questions...

[jnev]

I think a good set up for you would be a Neu 1512/2.5d (2000KV). The Max Amps pack would do fine, but there is better out there. A Trakpower 4s1p 5000mAH pack should last a whole 15 minute race. As for the ESC, if you don't feel a need to race until January about, then I'd suggest you wait for the MMM, but if you do plan on doing some races between now and then, then the MGM 16018 or Quark 125b have done great for many people and would be a good option for you to consider. You can also consider the Mamba Max ESC, but it doesn't seem to like the Neu motors very much, until there is an update in software at least.

The MGM would not need an external BEC, since it has a switching BEC inside. I am not sure whether the Quark would need one, but the MM would definitely need one on 4s.