Do basic Oracle Cloud Setup as per requirements:
1) Setup Daily Backup Policy
2) Setup Network Security (Security Groups and Security Lists) - 5/6 basic rules
3) Create Database instance and setup security (as per discussion)
4) Create Email sending credentials
5) Suggest any best practices
The entire work should not take more than 2-3 hours for someone expert on Oracle Cloud. Please dont bid if you havent work on Oracle Cloud before. AWS/Azure/GCP experience does not count!