This is doable one. Renaming the Mesh itself is quite challenging but that can be done via some ways. I have done using custom Asset Post processor and Modify that using Importing the asset. Later you need to script for the renaming set as well and what it does is it will Passes the user-defined settings to the CustomModelProcessor script which we created early. After doing this You just need to reimport the Models you want and trigger the On PostProcess model methos in customModel Postprocessor you created.