Hi Bill: I have sailed on the Galaxy and found her to be a lovely ship. They do offer cabins for the disabled in categories 6 and 11 which are well designed and which I think you will find acceptable. When I was on the Galaxy a couple of years ago there were one or two people in wheel chairs and they said that they were having a nice time which might indicate that they found their accommodations to be satisfactory.
If you need any more assistance, send me an e-mail. Sincerely. cruiseman