This is just a guideline and there are literally thousands of options out there for each piece of equipment. Do your due diligence and research each piece before you purchase. As with most things, you get what you pay for so if you have the budget, I would splash out on better equipment where possible.
The U.S. was founded on Enlightenment principles, and many of our deepest assumptions about art and life come from the era after Bach’s lifetime. Although Bach’s music is universally loved now, the stern Lutheran beliefs that infused its creation are counter-cultural today, and have often been ignored or derided since his lifetime. These days, the idea that theology can find direct expression in music theory can seem at best a heady curiosity, and at worst a regression to a way of conceiving the world whose very nature challenges some of our most cherished cultural, social, and political achievements.