5x months later, this pops out. Installs and configures completely with just one command including partitioning changes. And sound localizes with just one command from a docker image on docker.io.
Total cost, less than 100 euros.
Now I would like to encourage the community to develop the next step towards an anti-poaching solution. Specifically, automatic gunshot event start time locator runnable on a raspberry pi, towards an automated anti-poaching solution.