Move one .zip file out if condition is two .zip files exist - Automate 11, Win. 10

Hello,

I am trying to make an automation that would flow like this:

IF File Count=2 in Directory
THEN Move "1" file to sub directory

END

I am trying to figure out how to either count the files in folder based on the condition that two .zip files exist, OR based on the file sizes. I saw that I could compare file sizes, but I need to use a wildcard character for the file name as they a FTP'd to the filder.

Has anyone done anything like this, or have any suggestions on how to build an automation like this?

Thanks.