If anyone is interested in looking at what I have been doing to run the SVN RM process I am keeping it all here:
https://github.com/markphip/svnrm In summary, I am using Docker to build an image for running the release.py script. It can also run the build process but I am no longer doing that in Docker just so I can move the process to a faster machine to run the tests more quickly. The scripts I am using to build and test the release are included in this repository. It should be fairly trivial to run this on any OS with Docker just by cloning this repository and running the commands in the README.md I have tried several different approaches over the last week or so and think I have settled on what I will be doing for the upcoming releases. Mark