Hi Meesh:
Sounds like he is about where my husband was during this time. Really is awful to watch isn't it? It is so hard to stand by and not be able to help. There is so little you can do change how he is feeling. Just stay on top of his cleanings (teeth, tubes, lines etc.)
My husband was able to drive all the way thru, but the center is two blocks from home. I know many are not able to drive. Our cancer center has volunteers just to drive people to and fro. It is understandable that he wants to maintain this last bastion of independence, but he needs to consider the ramifications of fatigue and stress. It would be better to get daily volunteers to take him than run the risk of driving himself further into poor health.
Just my opinion.
Kara