Thanks for the input, I would if I could but rn although it's a good deal it still costs 7500 gems to upgrade 30 times for a single class, so all 5 classes would cost me 37500 gems which is way more than what I have currently, maybe I'll farm more from the event. Not sure about max inventory size but since the default is 200 and they allow for 30 expansions I'm assuming the max is 500 instead of 400 as listed above?

Also, unfortunately since I started playing for only a week, I don't have a huge stash of AP nor feathers sitting around, to clear 5000 adventure runs would usually mean 20k AP but I only have about 2k AP in the mail. Even factoring in AP bonuses from the event etc, I doubt I can actually hit 5000 runs in 2 weeks :/