Start-bonus: 400 coins.
Collections: 600 coins every 8 hours (5400) = 5800 coins
This does not include extra we can get from quests and ads.
For collecting times check this.
Dragons:
Goblin -VR- #595: 4 pieces
Golem -E- #341: 6 pieces
Monk -L- #1456: 7 pieces
Maps explanation: We start in the center. White is forward (costs are on each field), red is backtrack (costs 5 coins each field). Costs and what they are for is written on each map. One is blank for you to draw your individual path.