>>1115440a well insulated sleeping mat such as the neoair xtherm
a well insulated sleeping bag such as the north face inferno -40
a tent that can handle snowloads and some winds, the one in your picture looks solid enough
>inb4 who would spend that kind of moneypeople who arent neets that dont want to be limited by cold air half their life
not even the price of a new iphone combined and they will last the rest of your life