You do have to get Rick Jones to 3R to do the fight – he’d be your 1st cosmic tank.

Three of my team members are about level 43-44 – Thor is low at 36 off-setting Steve – so the event is doable at Academy Level 44. And 3 members are cosmic with 2 members that are science.
The thing is the rarity issue – so if you can field a team with gold rarity, you could do it.