You may wish to try out SheepSaver if you haven't already. There are some tutorials that make the process relatively simple, booting to Finder in a few minutes.
I have. I lost half a day trying to make it work and gave up. This was while ago. Maybe it's better now.
Columbia University offers this one: http://www.columbia.edu/~em36/macos9osx.html
Direct download: http://www.columbia.edu/~em36/Mac%20OS%209.zip
You can have an OS9 VM up and running in minutes.
These support networking: https://www.macintoshrepository.org/7751-sheepshaver-ppc-emu... https://www.macintoshrepository.org/15339-sheepshaver-packag...