?'s on setup

[Revo_crazy231]

sry i have so many questions but can my motor or esc (idk which) handle
22.2v or only 14.8 (for battery purposes)

my ideal setup so far
-Castle Creations Mamba Max ESC
-Feigao brushless motor 540 8xl
-Maxamps 8000 mah 3s Lipo pack (or) MaxAmps Lipoly 8000mah 2S2P 7.4V Pack
-stock chassis modification
-e-maxx tranny
-External BEC/UBEC
-Sky-Holic Li-Poly Balancer Guard (is this the balancer i would need)??

please let me know if this is everything i will need and i would also like suggestions on a cheap but decent radio system

thanks