Kansai > Kyoto > Takayama > Osaka

Hi all,

I would like to check if there is a JR pass that i can use for this itinerary as below:-

16th Feb - Arrive KIX 9.40pm
16th Feb - Travel from KIX to Kyoto Station
17th Feb - Explore Kyoto city and attraction
18th Feb - Nara Day Trip and back to Kyoto (use JR pass)
19th Feb - Kyoto to Takayama (use JR pass)
20th Feb - Explore Takayama and Shiragawa go
21th Feb - Travel from Takayama to Osaka Station (use JR pass)
22th Feb - Explore Osaka (possible to use JR pass in Osaka?)
23th Feb - Travel from Osaka to KIX

Is it possible to use JR Pass to travel on the 18th / 19th / 21th ? What would be the best option?
Does JR pass cover for buses too?

Thank you
Willy