if you dont go A123 cell setup i would think the truck would handle a little better if the wieght was centered in the 2wd here is your picture just modded to show the esc and move the battery more to the center...just a thought. and it would keep your reciver as far away as possible from the motor and battery wires.
would 1p be enough? granted its only 70A cont, but if you ran just 7s1p it would fit and you could perhaps make a 3s and 4s pack which you could use in o ther things :)
also, 7s geared down a bit should be enough shouldnt it???
i jsut went for 4s2p cause i got 2 a123racing packs for 150AUS delivered to my door :) (a dewalt pack costs about 40-60 bucks to ship here...for 2 more cells, and a whole lot more work)
BTW: do you REALLY want 1kg of batteries???
hyper 8.5 pro SOLD!
Monster Max Still Working...
JR SX3
Neu 1512 2D/S
12t pinion
4800 zippy-r