HI, Joe.
Thank you for posting this very interesting project! I have visited your website and YouTube channel. I find your content and approach impressive. I would be happy to help you produce one of these videos, and if you like the results, more.
I am a university professor, with extensive experience as an audio technician/editor. I have produced dozens of videos like the ones that you are asking for here, which I use for online teaching. I am quite comfortable locating license free images and footage for you. By trade, I am a music historian, so I would also be quite capable of finding appropriate license-free music to incorporate. One of my videos with audio and video editing is on my portfolio page (see "Louis Couperin - Prelude in F"). If you would like to see other examples of my work, please don't hesitate to ask.
I believe that my bid here might be slightly higher than the average that you are getting here. But I am also realistic, I think, that an eight-minute video of this sort could require nearly a day's work. Please note that I would also be happy to send you a draft, and then to make post-production edits based on your desires.
Thank you for considering, and for the important (and timely) work that you're doing!