I'm rather stuck on mission 64. I was just interested to know if it's possible if you've only maxed out the 3 main roles of all of your party members or if I'm just doing it wrong. I've had a little look elsewhere on the internet and they suggest using paradigms that I don't exactly have access too as I've not the crystarium points to fill out that paticular role.
 
So question is; is it possible to do only having maxed out the 3 main roles and if so what party setup will I need? or is it simply not possible untill you've maxed all your roles?

You might want the Sentinel role on all three of your characters so you can survive his uber attack. You don't need a maxed out party by any means, really if you have the minor roles at level 1 you'll be fine. Here's a video of somebody doing it with only level 1 minor roles: http://www.youtube.com/watch?v=aKy5ok5r1aA