Hi, defenitely you should start your preparations with looking for a tent that will best meet your needs. So, I recommend to find out about the key requirements for the extreme weather tents, and read reviews of the best arctic oven tents https://hot-tent.com/blogs/news/arctic-tents-review-all-you-need-to-know-before-an-expedition Hope it will help you be prepeared for everything. Good luck
Any good quality tent with a separate liner. I’ve slept in 5 and 10 person military arctic tents at more than -30 F. Totally comfortable.