Hi Kathy,
I have read some of your previous posts and, first, I want to tell you that I admire how you are a such great advocate for your husband. I am sure that your suppport, right from diagnosis, has been incredibly valuable to him to him. I, too, am a caregiver, and know how vital that role is to successful treatment.
My husband's diagnosis and treatment was almost 8 years ago. Yes, they got the cancer, but the after effects of radiation seem to be never ending. Your husband will probably continue to need your help and support for a long time, as new after effects manifest themselves.
When Kevin goes to Alaska, will he be in a place where he can get medical help if needed? Much of Alaska is very isolated. Of course, I don't know Kevin's particular situation. It sounds like he is doing well in many ways, and that is great, but he (and you) should feel very comfortable him about going so far from home and from his support team, just a few months after completing this very trying treatment. The treatment he had is not like other kinds of medical treatment where they just fix it and it is over. I am sure that your doctors can help guide you on this.
Best wishes to you and Kevin.