From Peoples Square to Kangxin Highway

Hi, I'm planning to stay at a hotel near Peoples square and going to work near Kangxin Highway.
Which is the best way? Should I take blue line nr 8 to Oriental Sports Center and change to brown line nr 11 to Kangxin Highway, or should I the green line nr 2 to Longyang Rd, change to line nr 16 to Luoshan Rd change again to brown line nr 11 to Kangxin Highway? Which one do you think is best? I'm going to be there for 10 days. Is there a Metro card that I can bye for 10 days or how does it work? Finally, how much is the trip as described?
Best regards,
Anders