The first edition was published at Canterbury in four folio volumes, 1778–99. It is a rare book, not easy to get hold of. But now (Feb. 2019), thanks to the University of Michigan, page images of all four volumes are freely available online. This is the link: https://catalog.hathitrust.org/Record/000152652
The next step should be to make an accurate transcript of the full text. And the next step after that should be to compare the two editions, marking up the additions and alterations which Hasted made in the second. It is very unlikely that I shall get the work done. Perhaps I may make a start.