When the NTSB did its study on homebuilt safety a few years back, one of the things they wanted was for the builders or owners to generate Pilot Operating Handbooks.
I recently generated a template for Fly Baby owners to use to generate their own manuals. This template is in Microsoft Word, and could easily be edited to cover any similar small homebuilt.
http://www.bowersflybaby.com/POH.docx
For those who just want to browse through it, the PDF version is at:
http://www.bowersflybaby.com/POH.pdf
Ron Wanttaja