I am planning to travel around Japan for 7 days in mid of October starting from Osaka, with tentative plan as follows:
Day 1 Arrival Kansai International Airport - Osaka City (Overnight)
Day 2 Osaka - Nara - Osaka (Overnight)
Day 3 Osaka - Himeji - Kobe (Overnight)
Day 4 Kobe - Osaka (Overnight Train or Express Bus, if possible) - Toyama
Day 5 Toyama - Tateyama / Unazaki Onsen (Overnight) - Kurobe Gorge - Keyakidaira
Day 6 Toyama - Kyoto (Overnight)
Day 7 Kyoto - Osaka (Overnight)
Day 8 Departure Kansai International Airport
Please advice what is the best and cheapest means of transportation in such case (Using Japan Rail or Using Municipal Buses Combined with Japan Express Buses for intercity traveling).
Thank you very much for your kind advice. Regards