Do you have a tent? This is the first thing to take. You also need to choose equipment, dishes and warm clothes are required, it can be cool at night. All this can be viewed on the Everest website, it seems to me that it will be more convenient to buy in one store than to run around looking for all the necessary things everywhere))) I advise you to read
about Everest.com and its membership caliber. In this case, it will be even more profitable to buy everything.