20hours to get s2 and 3 weeks to have 2x s4 armor? You are good at math
Full s2/weps and accessories is like 175k+ honor and marks. If you are lucky to get 2k honor per hour...thats like ~90hours which is about right.
Arena ~225 points for 10 losses (you are undergeared, can't expect to win). For example Gloves and Pants(requires 1550 rating) it's 3000 arena points, which will take you about 13 weeks if you are low rating.