I have not traveled 175, but it looks ok on the map aerials. Long steep grade on 441 south to Franklin, but I run it numerous times each year. I will say that 64 west from Franklin is a long climb as well, but very manageable. Going down the west side on 64 past Standing Indian Campground is beautiful, but again, a long grade going down.
Go slow, take your time and enjoy the views.
Zeb and Teena
2005 Mandalay, 2013 Ford Edge