Is it possible?

Heyy everyone, I'm looking to grab a $15 gift card before October 31st in order to purchase the deluxe tier for Colorful Stage (project sekai), as there's a gacha banner I'm trying to quickly get paid crystals for, and rather than begging for people to donate crystals to my inbox, I'd rather walk for it. currently,  i'm at 3,600 coins. Is this do-able...?