My Dad too had cancer of the kidney he was told in Dec'06 they said that he was too old to operate on to try and remove it he was 81. In Feb'07 he died, he had a strong heart I had went to be with him as a call came to say that he wouldn't make it. I got to spend Dad's final week with him, he was in a VA hospital in Illinois, I live in WI. but they made me very comfortable so that we could have that time with him, I was there 24 hours a day, I am so thankful I was given the opportunity to be with him. Every one is differant but if you want peace of mind and you are able you too would not regret having him with you if he is still able to be moved.
best to you and your Dad,
believer