Yes this works fully, and makes this entire project COMPLETEL:Y SOLVED.
I am printing out your guide as it is fully up to date, and complete in how to install Oracle Virtualbox 100 percent correctly and working in ARCH and probably a number of other Linux distros as well.
And even updates now function properly.
Oracle and Antergos have not yet fully caught up with each other on the releases, but you can just click cancel if asked within, as the updates are coming thru the built in software updater.
Now I am off to figure out Lightworks. and then everything in my world will complete.
There remains to be written a simple GUI based application that will take any DEB Linux or even RPM linux application that will simply allow you to download and install them. I know that is asking a lot but if they pull that one off, then ARCH based linux will likely become what everyone wants.
Or in my case Antergos, because it has the ultimate installer.
Then once Linux has a VSS engine to perform backups without leaving the running OS life is going to be utopia.