We did -
Takijiri-oji to Takahari 4 kms (easy)
Takahari to Tsugizakura-oji 13 kms (not bad)
Tsugizakura-oji to Hongu 21.5 kms (2nd toughest day)
Rest day Hongu
Ukekawa to Koguchi 13 kms (easy)
Koguchi to Nachisan 14 kms + detour (toughest day)
So 65-70 kms all up including various detours.
Be prepared for plenty of sharp ups & downs.
But no snow for us!