Guys, need some help here on my travel plan from Takayama to Fujisan, unwise choice I know but hotels are booked and paid so unfortunately not much I can change now. Travel day will be on Saturday if it helps...

0643 Takayama > Nagoya (Hida) > Tokyo (Hikari) > 1520 Fujisan (Bus from Tokyo Steel)
The bullet train reaches Tokyo station at 1112, the JR Bus departs at 1120 which is too tight. Next bus is already 1320, so my only choice is taking lunch here before departing. Another problem is this is susceptible to traffic... so arrival time may vary, even though 4PM arrival is perfect for checking into hotel.

0643 Takayama > Nagoya (Hida) > Shin-Yokohama (Hikari) > Hachioji > Otsuki > 1336 Fujisan
Cheapest (ticket at Otsuki) and most reliable option, 3 train transfers, predictable and reaches earliest, lunch can be had on train and then we save a couple of hours for visiting the area.

0740 Takayama > Matsumoto Stn (Nohi) > Otsuki Stn > 1429 Fujisan
Most expensive at 4400yen/pax + Otsuki ticket, but can wake up later and only one transfer. This looks the most sensible, but is the option below better?

0830 Highway Bus from Takayama > 1230 Kawaguchiko
RM182 on Klook, no transfer but this listing has no ratings at all.. not sure how reliable, otherwise this is the best choice. Likely no traffic?

Appreciate any input/suggestions..