Maze explanation is here.

Startbonus: 400 coins

Collections: 600 coins every 8 hours (7200) = 7600 coins.

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

For Collecting times check this.

*Dragons:*

Mars -R- #161: The path costs 860 coins.

Spaceship -VR- #1040: The path costs 2825 coins + 1 key = 3285 coins.

Moon Walk -E- #925: The path costs 3630 coins + 2 keys = 6005 coins.

Moonshade -L- #1548: The path costs 6020 coins + 3 keys = 10830 coins.

Lunar Shadow -L- #1141: The path costs 8165 coins.

Timelimited:

17 -18: Winter Moon -L- #1009: The path costs 6720 coins.