I'm done with everything now. Thanks to centrimetre for the last kanji. I'm posting this at both NF and here. Enjoy. :)

Page 1
Text: Sasuke draws his sword
Sakura- Sasuke-kun!!

Page 2
Text: Sai stands in his way!!
Chapter 308: Sasuke's Power
Sasuke- Your block... was a success.

Page 3
Yamato- All right!

Page 4
FLOWING CHIDORI!

Ugh!
Uagh!

Page 5
Naruto- Ugh..
Sakura's thoughts: A Chidori coming out of his body..?

Page 6
Sakura's thoughts: This time I'll be fighting too!
Sakura- I'll stop Sasuke-kun with my own power!

Page 7
Yamato's thoughts- Those eyes
Yamato's thoughts- He's dangerous!

Page 8
Sasuke- Your block... was a mistake.

Page 9
Sakura- Yamato-taichou!
Sasuke- My Kusanagi sword is a little special you... Read More " "

Done after some editing (finally). Thanks for the comments everyone.

Page 1:
Title: On a whim
Text: The far away figure of the one they sought. He has an unchanged look, but it's as if he's a limitless distance away.

Page 2
Text: From looking straight above is their friend.
Sasuke- 'So even you're here, huh, Naruto?
Naruto- '...'
Sasuke- Is Kakashi here too?

Page 3
Yamato- 'Sorry it's not Kakashi-san, but I'm the substitute.'
Yamato- 'As Kakashi's group, we'll be taking you back to Konoha.'
Sasuke-'...'
Sasuke- 'Kakashi's group huh'

Page 4
Sakura- 'Sai!'
Sakura- 'So you really were-!'

Sasuke- 'It was him that filled in my absence?
Sasuke- 'Saying something like he'll protect my and Naruto's bonds...... Read More " "

Needed the practice since I got a bit rusty, so here's my translation of 303.

Page 1
Cover- The passing of a half century's time---- The inheritor of a hero's genes!!

Page 2
Top text: Sai confesses with indifference--.
Naruto- What you say?
Sai- I came to Orochimaru in order to destroy Konoha.
Sai- The chance to work with Orochimaru is the true mission that was given to me.
Yamato- Keep it up.
Yamato- Everything you've been hiding is out in the open now.
Naruto- You.. do you even know what you're saying!? What kind of..
Sai- That's not all of it...

Page 3
Sai- I'm also on duty to bring Danzou-sama news, secretly, of Orochimaru.
Sai- In other words, I'm also entrusted on this mission as a spy.
Sakura- So,... Read More " "

Here's the translation.

1- Cover page
Title: Sai and Sasuke!!
Yondaime description: The swaying Konoha...there is the wonder that swooped down in an instant. Even now, he's still the shining proud "legend"

2- Closer to Sai, closer to Orochimaru... and then!?

Sakura- Naruto!
Sakura- This time... it'll be both of us to save Sasuke-kun...

3-
Naruto- Yeah..

4.
Sai- Pleased to meet you. I am called Sai. You are Uchiha Sasuke and-
Sasuke- Get lost.

Sai- Even though I'm making a smile...
Sai-It seems I'm of the easily hated type..
Sai- Even Naruto-kun hated me...

5-
Sai- But...compared to Naruto-kun, it seems I'll be able to make friends with you more easily.

6-
Kabuto- Sasuke-kun!

7.
Sai's thoughts-... Read More " "