Subterra

Party:
First String:
Vaan, Basch, Ashe (Level 68, Vaan - Excalibur, Basch - Scorpion Tail, Ashe - Ultima Blade)
Second String:
Penelo, Balthier, Fran (Level 69, Penelo - Excalibur, Balthier - Scorpion Tail, Fran - Ultima Blade)
All of them have Golden Skullcap and Maximillian equipped.

I try to fight in B1F, all of them are easy but I'm too afraid to go to B2F. :(
Is this stat ok?

The Seer is the only hunt I need to do in order to get Yiazmat to appear.
I've beaten Behemoth King and Zodiark, so can I beat this mark?