Startbonus: 150 coins
Collections: 600 coins every 8 hours (12600) = 12750 coins.
For collection times for events check this
The total does not include coins we can get from quests, dragon tv or puzzle.
It seems that SP is again running some tests. That is why players have different dragons in the event. Some players have Alien Pet instead of Projectile and Outrunner instead of Clown.
Projectile -VR- #1497 or Alien Pet -VR- #575 : 1080 coins.
Maraca -E- #1266 : 2680 coins.
Clown -E- #1495 or Outrunner -E- #1234 : 5380 coins.
Surprising -L- #830 : 11530 coins.
Ringmaster -L- #1496 : 17605 coins.
Mythical egg : 25680 coins.
Heroic egg : 33130 coins.