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 quests, runner or dragon tv.

For Collecting times check this.

*Dragons:*

Space Being-R- #574: The path costs 860 coins.

Tri-Ice -VR- #1331: The path costs 2825 coins + 1 key = 3285 coins.

Masked -E- #816: The path costs 3630 coins + 2 keys = 6005 coins.

Herbivine -L- #1545: The path costs 6020 coins + 3 keys = 10830 coins.

Timelimited:

July6 - 8: Absolute Zero -L- #1374: The path costs 8165 coins.

July7 - 8: Mammatus -L- #817: The path costs 6720 coins.