My Associated RC8 conversion

Hi everyone,

This is my first 1/8 car/project and also my first post here.
Still need to buy some parts but this is what i have so far.
Bought the rolling chassis on Ebay for really cheap.
This is how i received it with brushless motormount, battery holders and some kingheadz goodies.






After some research i saw some pictures on another forum from exactly the same setup.
So this car used to belong to BobbyGately, the guy from this vid:
http://www.youtube.com/watch?v=n-w8FALSyC8
This was the video/car that made me consider a 1/8 brushless conversion.
So i am really happy that i bought this chassis

The setup that i'm planning to run:
-Hobbywing 80a ESC
-Novak 4400 with 5mm shaft (13t/44t)
-4s 5000 zippy flightmax

Bought the Novak really cheap (yeah i like cheap ) so this will be my temporary setup. Just want to check how this drives and if i like it.


Some questions:
-The middle diff is locked. What is better?
-Can the Hobbywing esc handle this motor? (I think so but i'm not sure)