There are tons of rifle building videos on You Tube, some are very involved with 40 or more segments.
I thought the above-mentioned books were good until I made a few scratch builds and realized they all had good information but sometimes it was hard to take the printed word and create a visual image to work from. I found that some of the advice was just plain wrong.
I even bought the Gunsmith of Grenville County video series and found it to be poorly edited, poorly shot and absolute junk. In one of the VCR tapes, just as an important part of the construction was about to begin, about 30 minutes of the previous tape starts back up and repeats, completely omitting an important segment. When I questioned Alexander about this flaw he said "we made a few mistakes in putting the segments together, end of story.
Watch everything you can find about kit gun building, Bill Raby on Rumble has some very detailed stuff, there are many others as well on You Tube.
Here is one on unboxing a Chambers kit to give you an idea of what you will be getting.