We are also planning a trip to Japan in June/early July. It will be my wife and I with our 12 and 6 year old children. She has planned the itinerary below. We will be gone approximately three weeks and will start the trip in Hong Kong.

None of us has been to Japan or Hong Kong before. Flights on HK express from HKG-KIX are quite inexpensive.

Does this sound reasonable?
15-Jun Flight from US to Hong Kong
16-Jun Hong Kong
17-Jun Hong Kong
18-Jun Hong Kong
19-Jun Hong Kong-Osaka
20-Jun Osaka-Himeji-Hiroshima by night
21-Jun Miyajima-Hiroshima
22-Jun Koyasan
23-Jun Kyoto
24-Jun Kyoto
25-Jun Kyoto
26-Jun Kyoto
27-Jun Kyoto
28-Jun Kanazawa
29-Jun Kanazawa
30-Jun Hakone
1-Jul Tokyo
2-Jul Tokyo
3-Jul Tokyo
4-Jul Tokyo
5-Jul Evening flight
Tokyo

We will be purchasing a JR pass to travel within Japan. Any suggestions for cities or lengths to cut or anything to add? We will be finding a Ryokan if possible. We have found that hotels for four people can be tough and availability is difficult regardless. Would a 7 am flight from HKG to KIX be crazy? We want to avoid wasting a day in travel if possible... Thank you very much all in advance.