Need advice

Hi, roughly my itinerary is like this:
D1 : Nagoya airport (touch down at 8.30 am) - Nagoya - Kanazawa - Takayama
D2 : Shirakawago - Toyama
D3 : Tateyama Kurobe Alpine route (return trip Tateyama - Murodo) - Nagoya
D4 : Nagoya - Hiroshima - Nagoya
D5 : Nagoya - Kyoto - Osaka (only hard rock cafe) - Nagoya
D6 : Nagoya - Shinagawa - Haneda (take bus to Kawaguchiko and left bags in Haneda) - Ueno
D7 : Tokyo - Haneda (my flight at 10.30pm)

What do you think? On day6, I purposely go to Haneda to drop the bags and take a bus to Kawaguchiko since I am not confident enough to take a train from Shinjuku. As far as I know, shinjuku is so big and busy, I have no time. I only have half day to go to Kawaguchiko.

And on day3, is that possible I go to Nagoya after I come back from Tateyama?

If I buy 7 day pass, worth it or not?

Thank you