I have completed the mafia once but didn't take any notes on how much I spent which I believe was above 2k dukka coins so I am making note on here for round 2.
If you are attempting the mafia I would advise to restock an earth spell or 2 just in case
Total Dukkas used - 3179
Level 1 - 8 Dukka Coin and 1 Dukka Coin
Level 2 - 6 Dukka Coin and 5 Dukka Coin
Level 3 - 8 Dukka Coin and 1 Dukka Coin
Level 4 - 9 Dukka Coin and 7 Dukka Coin
Level 5 - 6 Dukka Coin and 8 Dukka Coin
Level 6 - 7 Dukka Coin and 7 Dukka Coin
Level 7 - 3 Dukka Coin and 9 Dukka Coin
Level 8 - 8 Dukka Coin and 25 Dukka Coin
Level 9 - 9 Dukka Coin and 7 Dukka Coin
Level 10 - 4 Dukka Coin and 25 Dukka Coin
Level 11 - 10 Dukka Coin and 9 Dukka Coin
Level 12 - 15 Dukka Coin and 20 Dukka Coin
Level 13 - 9 Dukka Coin and 4 Dukka Coin
Level 14 - 9 Dukka Coin and 20 Dukka Coin
Level 15 - 15 Dukka Coin and 20 Dukka Coin
Level 16 - 5 Dukka Coin and 6 Dukka Coin
Level 17 - 6 Dukka Coin, 15 Dukka Coin and 7 Dukka Coin
Level 18 - 2 Dukka Coin, 6 Dukka Coin and 7 Dukka Coin
Level 19 - 25 Dukka Coin, 10 Dukka Coin and 10 Dukka Coin
Level 20 - 1 Dukka Coin, 10 Dukka Coin and 10 Dukka Coin
Level 21 - 30 Dukka Coin, 50 Dukka Coin and 25 Dukka Coin
Level 22 - 20 Dukka Coin
Level 23 - 15 Dukka Coin
Level 24 - 50 Dukka Coin
Level 25 - 60 Dukka Coin
Level 26 - 15 Dukka Coin
Level 27 - 200 Dukka Coin and 100 Dukka Coin
Level 28 - 750 Dukka Coin and 750 Dukka Coin
Level 29 - 250 Dukka Coin and 100 Dukka Coin
Level 30 - 100 Dukka Coin and 250 Dukka Coin
Thank you for completing my mission on time Navy Pucu Potion and  750,000MP