Afrihost migration to AWS

I developed with PHPrunner a LAMP stack application for a client and currently hosting it at [login to view URL] client asked me to investigate and quote what it will take to move it to the AWS platform.I started reading and playing with AWS RDS, EC2, CloudFormation etc, but it is so so extended that I do not know if I am on the right track. Current scenario:[login to view URL] with multiple projects using single [login to view URL] Maria dB currently 4mb sql [login to view URL] hosting currently my https domain with Multiple sub domains (Managing the website with cPanel)4. Managing db myself with SQLYog Future scenario (would like to sell the app to multiple similar clients)1. PHPrunner (development tool)2. AWS Serverless Aurora Mysql (Test + Production) identical db for each new client, with high availability and replication.3. What is the correct way to migrate the existing PHP web environment with cPanel to AWS, I started RDS and created the db then with EC2 I created Linux instance + Apache and PHP,  I then saw the CloudFormation service.(now I am asking the questions) 4. The focus will be on performance and availability rather than 1000's of users. 5. I would like to focus on the business logic and the end user functionality and use a platform that I understand and trust.6. Because the customers will be small businesses, cost will be an issue, I think the AWS model of cost per usage will be perfect.   To set up this whole environment is a learning curve and I lack the confidence to know if I am doing it right. Is this something I can outsource and then just use and maintain? Who will be able to do this for me, plan/cost - implement - handover. The system is a logistics system for small businesses with less than 20 users and 250+ client users.