Who is playing the first tower event should check this.
We start with 125 coins and can collect 600 coins every 8 hours = 5525 coins in total. Coins we can collect from quests or cinema are not included. For collecting times check this.
Dragons:
Dolphin #268: 3 pieces
Sand #472: 4 pieces
Sunlight #548: 4 pieces
Seashore #1110: top middle
Catapults up:
Floor 14 - 16, 20-30, 23-24, 31-34, 33-40.
Catapults down:
Floor 16-15, 24-21, 27-21, 35-32, 38-26.