I need a small cloud formation policy written which will start or stop servers based on the size of a SQS queue.
I need this done right away.
I wan't and update policy for this which will allow me to enter an ami and a few other parameters for the new servers.
I am a certified AWS Solutions Architect and at my previous job most of my work involved automating AWS deployments and I used to work with Cloud Formation on a daily basis.
For your requirement in particular, you need a Cloud Formation template (not 'policy') that crates an Autoscaling setup. Autoscaling is a feature of AWS that allows to a group of servers to upscale/downscale depending on different metrics (in your case the metric is the size of the queue)
I am an AWS certified solutions architect[Professional level] and I have good understanding of autoscaling and SQS. I can get this done for you. If there are any issues I can write a lambda function that is triggered by SQS that will have more direct control over the infrastructure to do the work you need.