Lot of these questions would be answered if we would just decide on a spokesman, just for now, and contact OpenOffice.org as listed in the porting page and/or new projects page. They seem to have resources that may be available to use, possibly a basic project structure to follow, not to mention resources on porting.
Well, someone has been asking... http://porting.openoffice.org/servlets/ReadMsg?list=dev&msgNo=14932
Hosted tools available http://www.openoffice.org/nonav/scdocs/hostedtools.html
Starting a Project http://www.openoffice.org/nonav/scdocs/ProjectAdd.html
Mac OS X Port http://porting.openoffice.org/mac/ LinuxPPC http://porting.openoffice.org/linuxppc/ppclinks.html