I was thinking of adding some of them to my Nine Note Tune Book - I can do with more multi-part pieces. But my aim there is to produce the most portable ABC I possibly can (and maybe transposed fom the original).   Since these tunes are only two-voice (if I read the description of the book right) and published in 1856, there shouldn't be any insuperable problems with either representation or intellectual property.

The main problem with using your PDFs is that you've only done a small part of the book so far. And there doesn't seem a lot of point in me transcribing a transcription.