Just started Reset 8.
Did pretty much a 90% clear on each gacha, and seeing as there is still one more week to go, I think I can assume that if I keep going for 80-90% of the gacha I should be able to get all the trinkets from the other resets before the event ends.

As for the "bonus" mission. 2x is I usually get out of there. Doesnt bother me to be honest.