Sounds like an interesting project that Soundslice would be uniquely equipped to help with. We've got an excellent OMR system, plus interactive music practice tools that can optionally use the original score as a backend. Carl Malamud (npub1jre…alex) can vouch for us!
Here's the first tune from the Grange book, for example: https://www.soundslice.com/slices/DYpJc/