I formed this idea for a 20th level caster, although you can modify it for 14th level for less profit.
I figured if you used polymorph any object you get 20000 cu feet of matter that could be dispelled.
I don't think a peasant would be too worried about a magician barging into their house to dispel their food and water... the idea is quite funny though.
So you can make with three castings 20000 cu feet of any meat any vegetable, and cheap alcohol
(to keep it permanent, use one small block of what you want, since then it has over 9 in the duration blocks since its the same kingdom, intelligence ect)
By splitting these into 1 cu feet blocks each, and selling them for 5 cp. peasants who live off 1 sp a week, could spend 100000 cp or 1000 gp per week. You now also have peasants who love you, and have an additional 5 cp a week spare to flood back into the economy.
each peasant family gets 1 cu foot of alcohol, 1 cu foot of meat and 1 cu foot of the vegetable (They would need to preserve this, probably by salting it) or peasants could spend their entire wage and buy double.
This money can be put into polymorph any object scrolls and used to sell masses of more varied fish vegetables drinks and such, for a rather cheap price.
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For added funsies use divinations to discover strange unknown hidden drinks, and be the person to invent kool aid and soda