Palpatine event

Here we go, another "can I get Palp with this"
But .. here I go.

Trying to get Palp 7*

StHan lvl 80 g9
Biggs lvl 76 g8
Leia lvl 73 g8
Lando lvl 80 g8
Scarif rebel pathfinder lvl 70 g7

- Should I be able to get Palp 7* ?
- Who to put as Leader ?