I've got 10 frags and 120 points as of now. I'm a F2P player ... wondering if I'm able to get 20 frags before the event ends? The drop rate seems to be 5 keys average per day.

If not, what's the max. points I can get before end of event?

Is 200 coupons worth spending in order to get a 2-star GNW Kiba? If I do get around 175 points, I should spend less than that, defs, but considering whether 2 stars is worth it.