A construction company agreed to build a house tor Emma. The price was $45,000. The contract provided that the house was to be completed by June 1st, 2019. The construction company refused to perform and repudiated the contract. Emma, located another contractor who built the house, according to the same specifications, for $53,000. The house was built and completed on September 1, 2019. Emma then sued to recover damages for breach of contract. What is the measure of damages recoverable by Emma?