There are AFAIK one difference between the EV and DF-300, a brace in front to keep the chassis from bending.
Can be ordered as a separate item from Kyosho, just ordered mine..
For more info about the Blizzards see
http://www.making-trax.org/
I plan on running mine on 3S with either a Mamba 4600 or a Feigao/KB36