From your two posts it seems that the only doctor that he has been seen by is a surgeon, which of course means that the treatment plan is going to be surgery. Here in the states and predominantly in Canada, some combination of multiple treatments is becoming the norm. Surgery alone is only used in very early cancers by many institutions and with chemo and radiation in others. I hope that you are getting opinions from a treatment team (here in the US referred to as a tumor board), where doctors from different disciplines, (not just surgery) decide together what is the best course of action. That usually ends up with the best ultimate results.
You must have misunderstood the doctor, I have never heard of a graft being used for a neck dissection. And 40 is avery young man. He can tolerate (unless there are confounding other problems) physically any of the current treatments that they have to choose from.