Maze explanation is here.

Startbonus: 400 coins

Collections: 600 coins every 8 hours (5400) = 5800 coins.

The total does not include coins we can get from runner, quests or dragon tv.

For Collecting times check this.

*Dragons:*

K-Pop -R- #1145: The path costs 860 coins.

Joke -VR- #520: The path costs 2825 coins + 1 key = 3285 coins.

Dark Twins -E- #905: The path costs 3630 coins + 2 keys = 6005 coins.

Ultimate Strength -L- #1500: The path costs 6020 coins + 3 keys = 10830 coins.

Timelimited:

23 -25: Pool Party -L- #915: The path costs 8165 coins.

24 -25: Fiesta -L- #1311: The path costs 6720 coins.