6h 46m 21s
The section between Verdun and Beaumont is very well sign posted.
I followed Damien's route to get from Beaumont to the city where the women would have ended their journey to sell their produce.
From Verdun to Hahndorf there are no signs but it's straight forward to follow the road, there's one section that has no shoulder so you have to be careful.
Since this is a loop I decided to start from the point closest to my house and head to Hahndorf first.