Alfalfa for oil seems like a pretty good trade.
Let them go to someplace like Australia. Water in the West as precious as earl.
Should be close to an even trade. Exporting hay to Asia is big business here in eastern Washington. A ton of quality non-export hay is $375 locally and over $500 if shipped to western Washington.
Once you figure fumigating, container rental, trucking to the port, and shipping cost its probably over $1,000 on delivery.