Sorry, I don’t have an answer for you.

Yes, many

Yes

hi~~ Tokyo station is turly huge.......and the google maps almost uselessness as far as my experience.....because the commercial area is underground, GPS can't work very well, so the most useful way to find where you want to go is asking the staffs. There are some station staffs wearing jacket and hold the guide map,they can speak Japanese, English and chinese, if you can't find your way, try to ask them.......

There is a small area in the "Shinkansen south transfer" part of the station, but (depending on where the hotel is) it might be better to meet on the western entrance to the station - distinctive with space there. It looks quite Victorian and there's a big main trance and lobby. The station is big and easy to get lost.

It is a huge station. I suggest that you wait that the platform where the Narita Express arrives.

I’d do an internet search from the he train:

Yes. There are a good number of 24 hour cafes, eateries. It is a vast station If you Google ‘capsule hotels at Tokyo Central Station ‘ you will find three listed. An alternative if you want to get some sleep! Travel well

Ja dat kan er zijn meerdere shinkansen !