A company has a legacy employee verification product, which exists for many years. The system has used some old facial recognition technologies by comparing new photos with original ones in a large file system to verify employees. It is becoming harder to maintain the system as all architects of the product have left and technical documents are not well maintained. The company decides to migrate the system to AWS and use some new technologies if possible. However they do not want to spend huge efforts on the migration and hope to finish it as soon as possible. Which option is the best for the company to choose with a reasonable cost?