Are you using Google Drive to host CSS, custom JS files in FSB stores securely?

Hello, @Carey Baird … I would like to hear your opinion on this matter.

As you may have noticed, I like to customize my sites a bit.
I currently host all my custom css and js files from a master site that in return
Feed all my other sites.

I have invested a lot of time and effort in personalization, so my concern is that if my master site is deactivated or, what is worse, all my other sites will go down, since they depend on the css and js files that are supplied from said master site.

Therefore, these concerns made me think of additional services / security methods for the master site.
Did I have a thought, Google Drive? Which would be more stable and secure than a Google server. Right?
Based on the literary research I have done, it is technically possible to do so.

What are your thoughts?

Thank you!