Marathon training for me isnt so shitty. This was the first time I consistently ran 5 days a week, sometimes 6 days. My mileaged peaked around 50-57 miles in a week. I'd have to look, but I probably went over 50 miles, five or six times. two days during the week i had smooth easy runs, other two days were threshold/intervals, which I enjoy. The weekend was for the long run. Three hour runs dont really bother me. I dont listen to music on long runs, I just focus on my pace, surroundings, assessing my body. It distracts me enough to get through it. When the long runs peaked, in alternating weeks I had 18-21-18-21-18-21 in the plan.
If your taper goes well for the half, depending on weather and course conditions, you should be sub 1:30.
I've never done a fall marathon. I did do Dallas (early December). Training can suck. Too many long runs can happen in hot and humid conditions, the long run pace suffers.