Manually backup and restore individual Bluestacks instances?

I am looking to see if anyone has successfully figured out a way to manually backup and restore Bluestacks instances. I am not asking about Bluestacks backup and restore capability as this does not do individual instances - it's all or nothing - individual instances are not currently supported. However, regardless of supportability, I have a need to migrate some instances across computers. There are a few configuration items that would have to be addressed: 1. port number conflict potential 2. bluestacks.conf changes 3. potential change in directory at target I was wondering if anyone has attempted to execute this effort and whether you've been successful. Am I missing anything else that could be dependent? Many thanks!