Hello everyone, Elias here and author of the original script.
The Project1999 For Linux installation script has been upgraded and is a bit more robust/clean at this point.
The updated version can be found here:
https://github.com/ejhpas/Project1999-For-Linux
Please check the Readme before running the script.
Still a lot of work to be done, but it is much better than it's previous state.
Feedback is very much appreciated. Thanks everyone.