Welcome to the challenge and the forum too.
I like the Grenville Co. book as much as the rest. But that i learn from every source.
The best way to learn is to do.Period.
SO many things cannot be
worked out or
felt (i'm very tactile) or
seen until you actually start the
doings. Sure read all you can, but many things just won't make much sense or lodge in your brain until you've actually attempted the procedure.
IF you're handy with tools, you'll do fine. If not, you'll either learn (to be handy with tools) or you'll give it up. Tools must be sharp, resharpened, and often made for the task at hand-which can generally be approached 12 different ways. Again, you won't know which way works best for you until you start the doing.
IF you're going to be building the carved and engraved type of guns be SURE to acquire some scrap materials to practice on (of similar materials, don't practice carving on pine) and practice until you need to re-sharpen those tools.
Learn your school.
Sometimes the kit sellers make questionable parts decisions for you. You'll know this if you've properly studied up your style/time. It
may be safer to copy a contemporary builder than to try to recreate an original.
There, that should be good and cornfusin'.