My team for Daring Droid??

Wondering how my chances look for R2 :)

All lvl 85

7* Palpatine G8: Basic, Leader and Unique maxed
7* Vader G9: lvl 7 all abilities
7* Tarkin G8:
7* RG G7:
7* TFP G8: Tie Strike lvl 7, Unique/Basic both lvl 5

Tarkin and RG I'm still working on abilities. Should I Omega Vader's Culling blade, Force Crush or Terrifying Swing? What about EP's Let the Hate Flow or Power of the Dark Side? Running short on time before the event and really don't want to waste the omegas I'll get between now and then. (have 5 to use now just not sure where to put them.)

Mods are mediocre at best.

SO where do I need improvement yet and what is good enough as is?
Thanks in advance