It was 3500 euros in august 2022.

There was no deposit fee. Proof of flight ticket was used to reserve a surgery date.
I paid cash as was requested. I did get a receipt. My country allows you to travel with 10000 euros before you need to pay any tax on it

I chose him because he had a lot of good reviews and a person I know had gone to him and was very happy and had really natural results. Also because I knew my case was complicated I felt like there was more chances of success by going to someone who did open nose surgery instead of a closed one.

In open rhinoplasty, the surgeon cuts the sides of the nasal fins, the lower area of the bridge, and inside the nostrils to lift the nasal skin and apply the necessary changes thoroughly. But, in closed rhinoplasty, the surgeon does not lift the nasal skin and only makes two incisions in the inner area of the nostrils.
 
Open has the advantages that the surgeon has more access to different parts of the nose, placing grafts and protheses is easier and it is more suitable for complicated surgeries (ex. crooked noses, deformed nasal tips, revisions etc.).
Information found at: https://raadinahealth.com/en/blog/open-vs-closed-rhinoplasty 

Junior suit for 2 people with breakfast and dinner was 130 euros per night in August 2022.

3000dkk per person both ways (403euros, 394usd, 351gbp)

Originally when I bought the flight tickets in February 2022 yes. But in august 2022 the restrictions had been taken away so no need for any COVID test or to show Vaccination papers.

My doctor recommended 8 days. I ordered 14 days so I had a bit of a buffer time in case the flight was delayed and a few days at the end to shop. I ended up having the cast on for 8 days also.

I was feeling pretty weak the first days but on day 4 things changed a lot, swelling started to go down and I got more energy and then was able to go out and shop for an hour or two. Got better very quickly from that and at day 7 I was fully going everywhere without getting tired quickly.

No, the general hospital staff did not speak English. But my surgeons staff spoke English well.
I recommend getting the Google Translate app, go to settings and download Turkish, that way you can use the translator offline in case you have problems connecting to the hospital wifi.

Comfortable clothing that is easy to put on and take off with plenty of space for the head. Travel pillow. Something to make time pass faster such as phone with downloaded movies + long charger cord/power bank or a book. Extra water in bottles. Warm socks since you will be cold after being in a cold operating room.

In bigger stores yes and your hotel & car services but most places just want Turkish Liras so you need to get some and you should also always tip in Turkish Liras.
There are exchange places but you can also withdraw from atm's.
I recommend Ziraat Bankasi atm's, they didn't have a hefty fee from withdrawing as long as you chose not to use the dynamic currency option. Some atm's charge a 10% fee or more. (Pro tip, to choose English as a language in the atm, you need to insert your card first to see the option appear in the corner).