Terry my condolences to you and your family. It's not too much information. You just never know who is out here who needs this information as well. You know this board is a wealth of information for lots of people for all kinds of things, it's also a very therapeutic place for us too so is what it's here for!
I recall well, though it's now been about 9 years, when my grandmother passed. I first saw her in the hospital as her kidney and liver were shutting down and then about a week later when she was allowed to go home with hospice. She died within hours after I saw her at the home she was in (my uncles). We had an extremely strong connection and somehow it was "me" she needed permission from to tell her it was ok to let go now. I hadn't realized it at the time. Why me, I do not know. I will forever recall the things you have just spoken off. I was not prepared for it and no one told me these things even though my mother had been staying there with her and had been given all this information by the hospice people. Like you, I do not regret going at all as hard as it was to see her like that after so many years of wonderful happy memories.
I'm sure that you realize he is now at peace and lived a very long eventful life, as did my grandmother of her 89 years (immigrant from Scotland at 4 years old). Big hugs for you and may the next few weeks bring you peace.