I want to do a thing about copyright and want to use it as a Jumping off point (three cheers for public domain) but afraid of getting the edition that is like "Don't be stupid be a smarty. Come and join the Nazi Party!"
Would you be able to tell me of editions that have Hitlers intent come though, while also informing about the references that he uses?
I have a feeling that this is not the right subbreddit for this question, however I need an academics advice and knowledge to make sure I go down the right road, With a book like this, I'm sure you can understand why.
So the bad news is... I have not come across a good, scholarly annotated edition of Mein Kampf in English. That isn't to say one doesn't exist, but I've come up empty in my searches previously. There is a new edition just published in Germany that fills just that niche, but it has not been translated to English (a statement which can hopefully be qualified with a "yet"). There are some pre-war annotated English editions, but they are annotated to help readers unfamiliar with things a German audience would know, not the kind of scholarly annotation commenting on the content itself that I believe you're looking for.
But I can answer some of your question. The "Don't be stupid be a smarty. Come and join the Nazi Party!" edition of Mein Kampf is known as the "Stalag Edition". It was a wartime translation done by the Nazis themselves. It takes its name from a surviving copy which was recovered from a Prisoner of War Camp (Stalag), and thus almost certainly is the best reflection of how the party wanted the book to be read.
Barring an annotated version, I would say that the next best thing you can do is to pick up a copy of Kershaw's Hitler biography. Its generally acknowledged as the "go to" source for English language scholarship, and he certainly addresses a good deal of content from Mein Kampf with the critical eye that you are looking for. It won't provide a line by line analysis, certainly, but it will give you a very solid overview and help contextualize the book. Hope that helps.
I do not know of a new English edition of Mein Kampf, however the Ralph Manheim translation, with an introduction by D. Cameron Watt, published by Pimlico in the 1996 reprint is well annotated and footnoted and intended primarily for the student of history. Obviously it doesn't reflect current scholarship.