Prov31Simmerthe event rewards are available across saves so maybe you could start a new save just to complete the event, get the rewards, and then delete that save.
Alternatively, you could just skip the event and grab the rewards from the Gallery.
I actually do not ever play more than just one save file. It jyst seems too cluttered if I have multiple files. My kids might try it this weekend, if they even want to play Sims 4. I actually hate all of the checklist events, which is why I do not purposely do them. The checklists are what make me refer to this game as a Nightmare Micromanagement Simulator.
