hello follow this links for all ticket prices: muze.gov.tr muze.gen.tr

We will never have the possibility to visit it, you know way!

Most of the museum is under restoration, murals and mosaics are visible where there is no restoration. This is a small part of what is in the church, but it makes an impression. See photos from reviews and make a conclusion.

Монастырь Хора (Карие) находиться в самом Стамбуле. Можно из центра доехать на автобусе или взять такси (5-10 Евро)

Не могу сказать

Hello. The Chora Church is open 7 days a week from 9:00 - 7:00 pm. However some parts may be closed for restoration work. You can check their website, closer to your travel date, and plan accordingly.

I am not sure individually , but there is a museum pass which is better value if you are going to other sites, eg Ag Sofia- and it also helps jump the long queues. check re the building and restoration work though as lot was closed off earler this year