Tips for tower events are here.
Startbonus: 125 coins
Collections: 600 coins every 8 hours (5400) = Total: 5525 coins.
The total does not include coins from quests or Dragon TV.
For collecting times check this.
Dragons:
Shelly - R- #1120: 3 pieces
Wolfish -VR- #590: 4 pieces
Zodiac Pisces -E- #297: 4 pieces
Neptune God -L- #1301: 6 pieces
Electrifying -L- #1534: at the top
For a better resolution click this link: https://drive.google.com/file/d/1wiX9kMRUfDoUSBH51Eea2eSkx39yD60m/view?usp=sharing