Lenore, totally with you.
This does not have to be lengthy. I will say plainly that what makes it lengthy is doing it in part measures. What I mean by this is - if you give a little bit of nutrition and a little fluids - 'just for comfort' - then you will drag the whole process out.
If he says on this day I stop nutrition and fluids, then stick to that, and keep him really well medicated, don't be afraid to titrate, and it won't be weeks and drawn out.
This is the biggest act of love for you, and the bravest thing for him. What a man he is!
He has gone so much further than he thought he would, and you have been such an amazing wife and CALS and now you are stepping up for the biggest challenge of the whole thing. I know you are amazing. If you feel you are not, then it only shows that you are, because the amazing ones are the ones that are facing something they don't feel up to!