1. Orgmode format can be the base format for documentation sources. Even vim has support for .org files.
2. Faced with slow internet, difficulty to get pandoc installed on Porteus Linux. I have converted the two books on picoLisp, by hand to .org (opened in pdf viewer, select all, copy, paste into emacs Org buffer and then editing). 3. Mail archive book will be even more labor intensive if the repeated portions are not cleaned through a script beforehand. But I am not so expert to write such script.