I think a nice compromise to having a bank inside the Cove would be to move a branch to the docks of the Harbor.
Less of a run to get to your bank then.
For sure a button (or a check box) to trade in all of the maps at once would be a great benefit to these tiring fingers.
Truly it would be a benefit to trade the excess gold down to silver or copper would be wonderful.
Even at outrageous trade amounts.