G'day Graham
As Harker says, you do not have to have an answer. Your family and friends will be having a lot of trouble coping, we all like to behave as if we are immortal but this thing called cancer reminds us that we are not. There are going to be a lot of decisions that you will have to make over the next few weeks - decisions about the future and a future that may not involve you. You will need to get some good professional advice on that. You may also want to some counsellors, be they secular or religious as you, nobody else, wish. You will probably want to put in place things like medical power of attorney so that if the time comes that you are not able to give instructions, your wishes will be carried out. There is no reasons for there being any pain or hurt in your journey. Good palliative care is available and you should ask your specialist to inititate this. Remember, palliative care is not about dieing, but about ensuring a good quality of life for as long as there is life.
I have used before a quote that I have on the pin board in my study at home: "There are times in life when we have to face the big questions, to look death squarely in the face adn then affirm the sheer gift of life" It is attributed to Tim Costello.
Regards
Sailor