There is literally zero way to have over 500 baits. Daily free baits cap out at 20, plus the 3 from the daily box. You can't buy baits from the shop, and they disappear at the end of the event. So the most baits you could have at any one point is 161. Not gonna say that doesn't take a while, but if you just do the 23 daily each day as you get them, you won't be bored out of you mind on Wednesday when they're all stockpiled.