?'s on setup

[Revo_crazy231]

hi, everyone

first off i want to say thanx for all the information you guys and gals have provided i have learned so much!.!.!.

i have a few questions on my setup and wondered if they would work together

-Feigao 540C 9XL
-mamba maxx esc
-MaxAmps Lipoly 6000mah 2S2P 7.4V Pack

-also do i need 2 packs of these batteries?
-and if u have any suggestions on a better setup that is not crazy expensive
such as a diffrent motor let me know

-and finally if this setup was to work what speeds/runtime would i expect??

thanx again so much