Settling in in Seoul

Hello to everyone, my company will send me to Seoul for a professional Project for 6 months starting this fall. As I am in charge of my own settling in, I have a lot of questions about temporary housing, temporary but high quality internet contract, cost of living, the possibility of living and settling- in in Seoul without speaking Korean (of course I will learn the basic as I find it interesting and I consider it is important to know the language of a country). If someone (either a local or a foreigner) has a bit of their time to chat and answer my doubts it will be highly appreciated.

Thank you very much.

P.S I already did a bit of search myself but still I need a hand :)