Horrifying to read. I don't think we're ready yet for radical transplantation like this until we perfect the immune-system reset procedure first that allows for doing away with anti-rejection drugs.
Whatever happened to that research? I had read there was some success in resetting a person's immune system, by taking out bone marrow immune stem cells from both the donor and donee, letting the stem cells mature together in-vitro, and then injecting them back into the bone (after zapping the donee's original bone marrow), giving the person an immune system that now saw both tissues as 'self'.