But Panther installs "classic." Is the question whether you need to have a real OS9 installation in order to use Quark? I don't use Quark so I don't know.
Another idea -- can you copy your OS9 system file, install Panther and then copy it back onto your HD? That may not work, however, as you probably need to boot INTO 9 in order to do the copying.
I'm sorry if I'm adding more confusion to the question. But I do know Panther installs Classic, b/c I don't have 9 on my 12-in PB, but Classic started up the other night, AFTER I installed Panther.