Okay i was doing Theramore's Fall solo and when i was done with it i found out that i finished the Guild Scenario.
For 1 Guild Scenario you get 250gold and the week cap is 15xScenarios
250x15 = 3750gold per week. Im not sure if this is intended but you get some fast gold ^^
And if you remake guild all the time you can get a lot of gold idk if you can remake and get 15 scenarios. But you can check + You also get a lot of cloth's and greens so you can earn a lot of money