Summer 2018 will be my first summer event, and I was wondering what equipment I should focus on upgrading ahead of time.

Here's the stuff I've got: link

With the screws I've stockpiled, plus the dailies/weeklies/monthlies remaining until the event (assuming it starts around mid-August), I should have ~250 screws to play with. So far I've been doing events mainly on Normal/Easy, but I'm hoping for a mix of Normal/Hard this time around.

With all that in mind, any suggestions what to prioritize?