$180+ parts... or E-revo chassis conversion?

[zeropointbug]

Hey, I have been making a list of parts to get before I go racing in a few weeks, and I am at a crossroads on what to do! I have found that I could spend a little extra and get the E-revo chassis with everything necessary, and a e-revo transmission.

I am not even getting that many parts either!

One thing though, if you get Traxxas part #5382X (diff gear set), is that all you need to toughen up the Revo's diffs? Or do you still need the E-revo diff carrier? #3978