I would like a fresh installation of Magento on an Amazon EC2 web service.
You can propose the best Linux version for the server.
Also some basic optimization should be made in the Linux server in order to have better speed for Magento.
I would like to know in detail your suggestions on how you are going to work on this project so that I will know that you are an expert on that project and you know what you are doing.
For the MySQL database of Magento, I think RDS (Relational Database System) is the best solution.