lmao u have like 20k, i'm sure you can max all of them out without even blinking.

as for the events during fuku week, you can check past events annoucements because the events are usually the same. mission mobilisation is always a staple, and lucky stars also. both events are not known to have very high caps on power items.

high chance you'll run out of things to buy before you run out of coupons if you're just going to spend on power.