E-Maxx BL System (Sub $400)

I'm looking at throwing a BL System in my E-Maxx (10lbs and change). I use my E-Maxx for bashing 75% of the time and the rest is full out speed. Lipo's wont be for a very long time, but I am considering them in the future. This is what I have right now;

ICE Charger
Venom 3000mah 6 cell (x2)
Venom 3600mah 6 cell (x2)

I'm looking at going with;

MM
9xl Feigao
UBEC

Is there anything else that I need to make this BL System complete? Is this absolutely everything that I will need to run this System safely? I am also up for any other suggestions as I'm new to the whole BL world.