Hello well Monday I'm jumping into the electric indoor thing. this is what Ive decided on so far.

Tensor 4D
2208/34, AXI
Propeller 10x4.7
Li-Poly 860mAH 11.1 Volt
hs-55 servos
here are the questions i have.
the battery i have chosen if i use the prop Ive chosen will a Phoenix 10 be ok? or should i upgrade to a Phoenix 25 ?
I want to buy more than one battery and i was wondering if a larger battery could be used for longer flight times or is the 3 cell 11.1 the max? is there a huge advantage to going with a 7.4v 2 cell? and where is a good place to get them i would love to find a place that will ship it right off would be nice if i could get this all by Thursday or fri.
is the axi motor the best choice? i know this question may open a can of worms dependable power is a must flight times can be extended by buying more batteries.
Is a small outrunner 370 and 340mah 7.4 the way to go? this stuff makes me dizzy your help is appreciated