Google Cloud Setup & Migration Specialist

I need a comprehensive Google Cloud setup from scratch, as well as assistance with migrating my existing data and applications.

Key Requirements:
- Set up virtual machine for Odoo application
- Implement file storage
- Configure RDS database (PostgreSQL)
- Set up network firewall
- Manage API
- Establish private internal connections
- Set up backups
- Provide guidance on the best pricing models for Google Cloud resources
- Migrate existing data and applications
- Setup needs to adhere to specific geographical regions

Ideal Skills and Experience:
- Google Cloud Platform (GCP) expertise
- Experience with Odoo, PostgreSQL, and cloud migrations
- Strong networking and API management skills
- Knowledge of cost-effective GCP pricing models
- Ability to work within specified geographical constraints

Please provide a detailed plan and timeline for the project.