I agree with Anita & Nelie. No one can predict how they will react to all the treatments. I can tell you that Kenny (my husband) could not have possibly worked from week 1 of treatment through today (six months since last treatment). He had many, many complications. On the other hand, we met some people during radiation treatments that work all through two-a-days! You just never know.
Like Anita - I suggest that you plan for the worst & hope for the best. What will happen if he can not work (financial, physical & emotional support) - then if he can work, that's great! But have a plan. That was one of the most stressful parts of this -- not knowing what to expect and not having a plan of action.

Hang in there!
Carol