Move Duplicate Instead of Renaming or Deleting

I have a rule which monitors Folder1 for files and then renames them based on their contents and places the sorted files into Folder2. There will virtually always be an existing file with the same name in Folder2 as the renamed one being moved from Folder1. Of course, Hazel gives the option to rename, replace, or delete the existing file. What I would like to do instead is move the existing file into Folder3 (an archive folder). What is the best way to go about accomplishing this in Hazel?