I too am new to the CM method, but have to agree with mrsjamiesouth about the SCM curriculum guide. It is really great! I have been using mostly library books for history, art, science, literature, and poetry too! I have the Plan Your CM e-book and have found that if you will follow it and the curriculum guide on this website you will be pleased with the results.
As far as spines go, the curriculum guide uses these books for the spine in module 4 (which I think is what you are wanting to do):
Famous Men of the Middle Ages
Famous Men of the Renaissance and Reformation
You should definately look at the curriculum guide/history module 4 🙂
http://simplycharlottemason.com/planning/scmguide/history-modules-overview/history-module-4/
We also use Spelling Wisdom for dictation/spelling. It could be used for copywork too, but we use Bible verses that I choose for copywork right now.
I don’t know much about teaching writing formally, since my kids are still young (2nd and 3rd grades), and I am still learning about CM methods. However, there are some very wise women on this forum that I know will have some advice for you. I am counting on that wisdom too! 😉
Hope I’ve helped a little bit 🙂
Amanda