How huge is the difference between 6*/7* Thrawn.

I'm a little further than you @Anakin_Skywalker but will be cutting it close too. I've got everyone g8 but need next credit heist to get everyone leveled. I should have all uniques with omega by the end of the weekend and most abilities up to 6 or 7 and then next week will be all about RNG. I'll try to stash gear if needed but really don't want to spend anymore carbanties or stun guns if I can avoid.