Having been a tech instructor for over 30 years the main reason that manuals cost so much is liability. If you produce a manuel for a piece of equipment and Joe Blow hurts himself while following your Manuel, the company can be held accountable even if Joe skipped a valuable step. CYA is the name of the game. Do you realize, that in this forum someone can come back after you if you post dangerous info, or incomplete instructions. While I was an instructor I had to have extra liability insurance just because of this. I say careful what you wish for.