Upgrade to SAGE 300 2019 without complete removing complete old version folder to keep other third party modules?

Hi,

I am running SAGE 300 2016 version with some 3rd party tools. Now we planned to upgrade to 2019. We have got a confirmation from 3rd party vendor that the same old setup can run on version 2019. To avoid reinstallation of 3rd party solution, Is there way to upgrade SAGE 300 core modules without removing the old folder?

Example: Existing files are sitting on SAGE2016 folder and wanted to install new version on the same folder. So that new version of SAGE 2019 programs and older version of 3rd party will be there in the same folder and SAGE can read both programs. 

What is the best practice to handle this situation for upgrade? Thanks well in advance.