Another thought: If you can find some nice person with
a set of software restore discs for your model, he or she
can copy the OS9 "Classic" file and send it to you on a CD.
Requires TinkerTool (the freebie).
Tell TinkerTool (Finder tab) to show hidden/system files.
Insert Restore Disk 1.
Look in the Images folde for the OS9General dmg.
Double clicking that puppy will give one (or more,
... I forget) folders that you drag to your HD.
Then tell OS9's Classic prefpane about it.
I'd send you one, but the version for my MDD
G4 867DP has a slightly older ROM file that
won't work on your box.