You can do the following:
Manually install Migrate server on your own virtual host in AWS. See Checklist for Manually Deploying a Migrate Server in the Cloud
in the PlateSpin Migrate 2019.2 Installation and Upgrade Guide.
Use the AWS Quick Start to help you quickly and easily deploy PlateSpin Migrate server on the AWS Cloud.
NOTE:Shortly after the General Availability of every release, PlateSpin Migrate updates the support for the AWS Quick Start to help you quickly and easily deploy the latest released version of PlateSpin Migrate server on the AWS Cloud.