Other options include:

• If you need more coin than what's available in town, you can undertake a trade mission. Take some of the steading's Surplus to Marshedge, Gordin's Delve, or maybe the Hillfolk, and find someone to buy it. A purse or two of silvers is a fair trade for 1 Surplus (Value 2).
• Go explore the Ruined Tower or someplace like it and dig up some sweet loot. Then roll Trade & Barter to sell it to a passing merchant or head to Marshedge or Gordin's Delve and try to sell it there for more.