θησαυρός γε!
I have just stumbled on The Greek Philosophers: Selected Greek Texts from the Presocratics, Plato and Aristotle by J. H. Lesher (Bcp Greek Texts)
About a third of the book is on Aristotle. This week I am returning to Herodotos but when I get to this book I will post a comment on how complete the commentary is.
Both would be welcome. However you will find among Bryn Mawr Commentaries
Xenophon Constitution of the Athenians by Mark Joyal For Aristotle, however, I have yet to find a single intermediate commentary devoted to one of his works so that would be a very glaring gap you would be filling.
Many intermediate commentaries take a single book from a larger work so don’t write off larger works for that reason alone.
I just posted on his Iliad paraphrase.
http://discourse.textkit.com/t/iliad-with-attic-parallel-text/11430/62
The Greek of his paraphrases and footnotes does not strike me as Katharousa but as legitimately Ancient.
Having now sampled it, I would now recommend this highly. The commentary is considerably longer than the Greek . Not all of that commentary is grammatical support but the comments on Aristotle’s philosophy I found helpful. (Historical commentary when I am reading Xenophon and Herodotus is for me a distraction when I am still struggling to understand what the writer says.) Even when you deduct the space devoted to philosophical commentary the space devoted to grammatical support still is greater than the Greek text.
But it’s needed.
Even with the commentary I find it very hard going. I do wonder if there are easier parts of Aristotle that Lesher could have chosen. For his extract from the Parts of Animals he has chosen Aristotle’s defense of the study of animals rather than a more concrete description. Anything abstract, for me at least, is much much harder than something concrete.