With that group, it's going to be a tall order. Palps brings in Vader and sics him on you. Vader immediately does his crush, giving him full TM and he follows up with culling blade. He could very easily cut down one of your squad at those levels, but probably not Leia. St Han will obviously be useful to soak up RG stuns, but Palps AOE is pretty good on T7. I started to get a little concerned when my squad lost protection, but they persevered because they are all high level, L80 IX and up, but that wasn't enough to save HRSc.
I don't know mate, it's going to be tough. You will def lose Scout, Biggs and AA. I will be surprised if Leia gas enough DPS to get it done.
You have to focus Palps. Let the others hit Han and give you TM. But if Vader swipes at Han and lands ability block before taunt, you'll be toast.