Harry will have Erik, Steve, and Peter, LL be there on the two sides of Wanda's bed, as he stands at the end. He'd draw a circle around the bed, just large enough for the three, himself, and Wanda's bed to be in it.

With father, husband, and brother there to provide a link, and with Sara there to provide guidance, he would use the Death Totem to reach out to Wanda, find her soul. He'd then use his power to reach back to the three at the bedside, latch onto the signature of the others with Wanda, and bring her home to her body.

As the ceremony ended, she would be able to wake up, whole and healed, with Harry gently putting the death Totem into a bag, handing it to Sara, and then vanishing via teleportation without a word, to let those who know her be there for her.

And to get very drunk.