Do u know when he will post?

Hey could somebody advice me on my spending plans?
A bit about my current situation: I started in S17 only a few months ago as a f2p so I don't care much about being competitive, but gaining power is always good :)

I have 20k coupons (well about 19700 cps actually but I expect I can get the remaining 300 before coming Wednesday)

So strategy one would be to buy 37 frags of the Hyakki clothing to complete it, 20 frags of edo itachi from lucky dice and complete it with fuku (60 frags), and pump the rest into lucky stars for about half of edo minato.

Strategy two would be to get 80 frags of edo itachi from lucky dice, and pump the rest into lucky stars, which should get me about 70 frags of edo minato (11 from stars, 60 from fuku).

Which seems like the better option? Or is there a better option?

Or I should just exercise super patience and wait until I can save for a complete Fuku rebate? >.<