On November 4, Kim contracted to sell to Lynn 500 sacks of flour at $4 each to be delivered to Lynn by December 12. On November 27, Kim shipped the flour. By December 5, when the shipment arrived, containing only 450 sacks, the market price of flour had fallen. Lynn refused to accept delivery or to pay. Kim shipped 50 more sacks of flour, which arrived December 10. Lynn refused delivery. Kim resold the 500 sacks of flour for $3 per sack. What are Kim’s rights against Lynn?