interesting idea. I think though making servers free from donations and make these servers playeble for small charge a month would be easyer and more interesting though. I am playing this game for like a month and yet i am still grinding 8 hours a day XD I hope time consuption will drop as i progress though...
my suggestion btw: http://forum.naruto.oasgames.com/en/forum.php?mod=viewthread&tid=22048&fromuid=348838

FeelsBadMan