I have the original factory manual and it seems quite a bit different. It covers the 29D and the 33D, pretty much the same tractor. There are also 14 sections, not 13. And there is no section for separating the tractor.
I looked for a long time and ended up getting it for $125 from one of the members on this site. A very fair price to me. It is a high quality manual with detailed trouble shooting steps and perfect R&R procedures. I've only needed it for a couple minor repairs but it was well worth the time I spent searching for the original manual.