I had to modify the script to point to the most current version which also works on CentOS:
FastComet provides nice instructions for using this script:
I will test this soon and post my results here.
Shared Hosting for Ghost
For an even more simple Ghost hosting solution that gives you a full (shared) hosting package with a cPanel interface, a drop-dead simple (and cheap) web host which I use is FastComet. This Ghost site is running on FastComet. (It's fast, right?)