Stephanie,
I know how hard it is to watch someone you love go through so much suffering. I was caregiver to my husband (now 13 months post radiation/chemo.) I wanted to tell you that, though my husband was resistant to the idea, the feeding tube ended up taking alot of pressure off of both of us. There is too much other stuff to deal with to have to be constantly thinking about getting enough nutrition as well. He finally got his at 5 weeks into radiation.

As far as planning a vacation (which sounds like a GREAT idea), the rule of thumb that has been repeated on this board and that we found to be very true is one month recovery for every week of radiation.

Sending good thoughts and prayers for healing and strength your way;
Anita