Mno. Partial lung transplants, yes, we're talking like, segments, of which there are ten to a lobe, or an entire lobe, of which you have five -- three in the right and two to the left, yes, you can do from a living donor. A whole lung.... I don't think so. In that case, we're talking people with cystic fibrosis, or a youngun with A1AD Emphysema.
They don't usually do transplants for lung cancer patients -- especially considering lung cancer metastasizes (spreads) very easily, or if he had a soft-tissue sarcoma that metastasized, they'll probably be afraid it'll spread to his new lungs.
I'm really sorry to say that the survival rate for lung cancer is really really crappy. I won't lie to you. It's a horrible way to die.