Can I get 690k ISO in 13 days?

cliffmancliff

So what has turned into a huge regret (aside from getting all three goblin colors and a new BSSM color), I cashed in my 48 Legendary tokens/CP before BSSM and Phoenix dropped into tiny-percent-land. Got some good pulls, but ended up with 23 dupes, four of which I considered champing, but cut down to two for practicality (read 1.4 million ISO cost). So now I have four Rhulk covers and three Thing covers, so I'd like to champ them, but it's going to take 690K ISO, and I have less than 180K. I wish, I wish, I wish I had thought about how I couldn't afford to champ anything. I would have sat on the stash for months. It never occurred to me. Is it possible to get 690K ISO before they expire? I've thrown away so many covers.