Github holds plenty of examples to bypass chinese great firewall. I would say you use a vps and set up those proxyies, a while ago it was shadowsocks. Today, idk. Maybe amneziawg. Not sure if you can make the clients work on windows 7, in any case just get a travel router set it up there and use that as the filter to your connection. Break down the problem into pieces. And yes, that router and/ or vps will have Linux (: