How high gear lvl do I have to get my phoenix squad for thrawn?

I managed the event in April-18 with the following team: 7* all lvl 85: Hera g9 (183sp), Ezra g11 (199sp), Zeb g8 (173sp, 62,6% pot), Kenan g8 (127sp), Chopper g8 (198sp). Omega on all, ok mods. Potency above 60% on Zeb is key, as well as speed. Took a handful of attempts, but Thrawn is absolutely worth it. Besides, gearing up Ezra is also helpful in other areas of the game. Good luck!