Joe, on the subject of books. Most of my library are old books that are hard to get and and articles clipped out of 40 years of magazines. Some useful newer books are Rick Voegelin "The Step-by-Step Guide to Engine Blueprinting" ISBN 978-1-884089-26-8, David Vizard "How to Build Horsepower" ISBN 978-1-93470-17-7, and Harold Bettes and Bill Hancock "Dyno Testing and Tuning" ISBN 978-1-932494-49-5
A thought on the bike choice. Eventually a person is going to need some strong racing rods and pistons, bigger or better valves, stronger and better quality springs, hotter cams, etc. Honda was, and is, constantly changing their designs. It is hard for an aftermarket company to justify the tooling, research, and development for racing parts when the design is limited to a few model years of life. Some of the other makers such as Harley, Triumph, and Kawasaki keep their designs for longer periods. There are many more racing parts available for these. Take the modern Triumph Bonneville I ride as an example. The heavy ill handling beast is the slowest bike Triumph makes. It has been in production for a long time and a large volume were sold. There are far more aftermarket parts available for it than any other modern Triumph.