We did the TOW last summer and also up to Inuvik and Tuk. One thing not mentioned about the TOW is which side the drop off is on. It’s only narrow for a few miles but the edge is on the north side so on the right (your side) if going west. That’s the way we did it which was ok because we didn’t run into any traffic coming the other way. I’d rather be on the inside close to the mountain than on the edge.
The road to Tuk was great except for the last 15 miles (will probably be finished this year). The bridges were awesome (that’s for you Peter if you ever read rv forums). Driving in sunny daylight at 3:00 am was even better.