Hello, JJ. I am so glad to know that things are moving so quickly for you. The waiting around time is sometimes the worst. As to your questions:
1. I have learned that sometimes when there is no spread of the cancer to the lymph nodes, radiation is not given.
2. I had a tumor removed from inside my mouth, not as extensive as you will have, but I needed a trach and a PEG. You might want to ask about those. If what you want to know is about pain, I did not experience any that a little medication the first two days did not take care of. After that, no drugs were necessary.
3. This is where I can speak with authority. Our plans to retire VERY early were realized and as so many people said, I don't know how I ever had time to work. I would recommend that you go for it. Not only will you be freed from the worry of returning to work if you don't feel like it, I guarantee you will find a gazillion fun things to do, and with a new house, you will be way too busy for a job. If you do not depend on your employer for insurance, I am sure you will have a great time being retired. If you garden, for example, you will be feeling better just about when it is time to get those seeds and plants in the ground. Seriously, JJ, I can highly recommend retirement.