I'm certainly not proposing anything, since that's a long way from my old country home in East Texas, but I thought I would share our experience of a few years ago. We entered Vermont from near Glens Falls, NY and took US 4 across Vermont, via Rutland and Quechee Gorge. I must admit that we then took I-91 up to cross northern NH and into Maine on US 2. In fact, we were headed to Bethel Maine to visit a friend and on this trip did not go down to the Maine coast.
I'm sure one could go on across NH instead of taking the freeway on north as we did. It is just the portion of our route through Vermont on US 4 that was especially scenic and enjoyable. We could have spent a week just on that portion of the route, but that was not our objective on this particular trip.