Helena will need to be sedated to be moved, not just tied down. She's still not a strong swimmer and she's still a little terrified of the river trying to drown her. She's also still positive that everyone is trying to kidnap her and give her to the monsters, so, yeah, she would freak out and try to run away otherwise, which could still be a thing too.
Anthony's body disappeared before he could get moved back to the Community Center. His mementos are: 1. Simon the dog, goes to Po 2. A family picture from when all four kids were born from when he aged up, goes to Sals 3. The stuffed dragon that Mike got him for his birthday, goes to Mike, Rolf or Nate. You can decide.