What's left after all that?
A very basic desktop, but fully functional and attractive (apart from the desktop wallpaper).
It has GUI controls for changing themes & window appearance.
You can also edit Openbox settings with its GUI.
The Settings menu gives you access to these, in addition to lxrandr (which doesn't work well in a VM) and xscreensaver settings.
Unfortunately, the web-browser link will no longer work (since the previous Pure KDE command removed Firefox).
Never mind, we'll go on to customisation now….
Before we do, after all that editing, a reboot is in order to check everything is behaving as you would hope and expect.