Sorry I can't read a wall of text like that, please use paragraphs
But I did read far enough to understand you are overwhelmed but that you also have ejuice on hand. So I am assuming you have enough juice to get you through for a while.
To make it easy on yourself stop worrying about flavors, PG, VG and glass bottles - those will be available no matter what because those things have been used in a plethora of things not related to tobacco. You can buy a few flavors you think you want, but don't use up too much money and energy on that right now.
Spend your energy and money stocking up on nicotine base and a small freezer (if you don't already have one). Everything else is not important right now.
Stop reading all this information about this and that and what you need tomorrow and what might happen and all this jazz. Focus on what you need
today -
nicotine and a means to freeze it.
How to make your juice and what you need to make it is information you can get at your leisure and not needed right now. All you need to focus on right now is nicotine and a freezer (if you don't already have one).