Your breakdown is kinda lame.

First assumptiom :
Sasuke would let Neji come in close contact.

Second assumption :
Sasuke leaves himself to an open attack while going lv2.

Third assumption :
Chidori is deflected by Kaiten.

Mother of all ridiculous Assumptions :
Originally posted by: Y
Neji can force him into medium range pretty easily by just doing Kaiten

You wanna hear my assumption, here it is . Sasuke will win.