@Wolf Brother,
100% on the get the training and experience.
There are a lot of preppers out there who think they have the book, or worse yet, the PDF, they will be able to do it. They will just pull those out when the time comes.
A bit different when your patient is a real, living breathing, and in pain person.
I got my EMT-B and took the Wilderness EMT cert from NOLS.
You want to know what medicine will look like with no moderen facilities, the Wilderness course was it.
I would add
Medicine for Mountaineering & Other Wilderness Activities
Control of Communicable Diseases Manual
Taber’s Cyclopedic Medical Dictionary