That is the same that was recommended to me (kinda), i'm going to use the 8000 mah, how much did you get your batts for? Also, i don't see any probs with the motor your using, it's better than the one i have, so you should be fine.
"if you've got something to say, say it peacefully"
2 x 3S2P 6000mah was $240 with thrown in hyperion taps and y harness for series operation
155 for Hyperion EOS7i charger and LBA6 balancer.
free shipping.
doing the same with the FMA balance HD batts and charger is just too damn expensive...i don't care about the sophisticated charging system...from what I've read there's more than enough sophistication in the Hyperion charger to reliably charge your battery properly every time.