Sounds like a great project! I’ve been putting together something similar for my own learning, mainly to have contextual info at hand instead of constantly digging through books or online sources.
One thing I’ve been working on is plotting the approximate locations of different schools on a map of Japan. Paired with an abstract overlay of the Gokishichidō, it’s been a helpful way for me to visualize how knowledge and traditions may have moved around over time.
Dates and locations are very much a work in progress on my end, and it’s definitely not meant to be a perfect resource, just something for personal study.
I’m no expert, but I’d be happy to cross-reference what I have with your data and flag any discrepancies I notice. And if it’s useful at any point, I’m also glad to help out or compare notes as your project comes together.