This is exactly what I did buy before I decided to buy the car. First I bought the repair manual and did study it from first to last chapter. I was impressed by the difference between driving a Ford A and a Chevy (did try both), but I never had a prewar car before and because I had a real financial desaster with an old french Citroen before the Chevy and because I am married the deal was:
"Listen, you know all about the stroke you had in 2006 and you will buy the chevy only if you are 100% sure your power is enough to handle it.
And I really was not sure about because I had no experiences with that kind of old cars and life after a stroke is a bit different from "normal" life. So I bought the repair manual first, and after study I thought, ok, lets try it.
And now I am happy to see I can run it.
So, as I posted sometimes here, first buy the manuals and books and you will see everything is not as complicate as you think about.
The books help a lot, for me the only remaining problem is, that english is not my native language and sometimes it is a bit hard for me to understand the technical descriptions. But I should say, there are no problems, there are just solutions, and step by step I get my chevy in a good condition.
In cases of emergenzy I may call my uncle, retired ingeneer, living in Henderson, Nevada since he left germany in 1962, and he did promise I will try my best to keep that bucket of bolts running, and it works...
Sorry for boring you with many details, lets reduce it:
Buy all manuals and books you can find (Filling station, ebay

), read and understand it and you will grade up to a professional mechanic soon and you will be happy.
Looking forward
Stefan