@tinambor I didn't go for a second opinion but was a surgical candidate for a lower left lobectomy. After a broncostomy and Lung Function Test, the surgeon member of my oncology team told me that, although he "could" perform the surgery, he felt that he "shouldn't."
He said that because of the poor condition of my lungs, surgery would have left me with very poor lung performance.

So, I thanked him for his honesty and opted for combination of concurrent chemo/radiation therapy which I completed two months ago.

In my opinion, you must believe in the treatment that you will be going through. If not, consider alternative(s).