Good luck to you, but I find it distasteful to effectively just scour forums and faq's and see it released as some pay for collective guide.
Not a thing in it that could not be learned by a few clicks on the various Amiga forums. But hey, cash in while you can.
We should be warmly and openly helping people set such things up without putting dollar signs on things.
I find such things the epitome of what is wrong with "the scene". Maybe I am just an Amiga old timer that got too used to people openly helping on another without putting a dollar value on community collective tips and information, I guess.
This isn't like one of those wiki books but if you're still unhappy that someone should make a little return on the time it took it research all the information and compile into a complete guide of 300 pages then you are free to do your own and release it as a free ebook.