The medieval coptic history attributed to Abu Salih by the first editor, B.T.A. Evetts, was published in a complete form by Bishop Samuel al-Suriani in Egypt, in five parts and two volumes. I learn today that he may also have completed an English translation, available from the St. Shenouda Center in the USA. Their bookstore is here. Unfortunately the details I have are infuriatingly vague, as are the details on that page. I wonder if it is true? If it is complete?
Pity it isn’t online, if so.