anywhere from $20-$50 for a battery and ESC.

I mean i might end up buying the proboat esc for 39.99 online. But thats after i see if the boat will run sufficient enough for me with the esc i have now. All im trying to do now is power it up. I just need a battery. Im not too sure which battery i need besides the one mentioned 6 cell 3000mah nimh battery pack.