Maze explanation is here.

Start bonus: 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:*

Cerberus -R- #177: The path costs 860 coins.

Intraterrestrial -VR- #535: The path costs 2825 coins + 1 key = 3285 coins.

Frightening -E- #718: The path costs 3630 coins + 2 keys = 6005 coins.

Spiked Ghoul -L- #1595: The path costs 6020 coins + 3 keys = 10830 coins.

Timelimited:

29-31: Rogue -L- #860: The path costs 8165 coins.

30-31: Conquerer -L- #1194: The path costs 6720 coins.