Only do missions sent by a friend, this way you get the 5 points + a mission box (wich gives 10 extra points and a chance of Itachi/Kisame/Konan frags).

So, 15 points, 10 missions per day.

7 days for the event = 1050 points

1050 points = 26 Konan frags or 35 Sasori frags for the whle event.

(without topping up, drop of Konan frags from boxes or Sasori frags on Sakuras Blessing)