I found copies of the disk image off of Windows, and so far they've been running quite well in SheepShaver with an old world ROM.
I guess SheepShaver didn't like the disks I copied from the Leopard backup, but it did take the copies I'd moved over to XP to tinker with.
It works, and I've even managed to change the icns file to the old Classic Environment one (got that from Panther via PearPC).
The only things I'd like to change is that when SheepShaver runs OS 9/9.0.4:
-Use the default OS 9 hard drive icon (don't know if the current icon is simply hard-coded)
-Show the emulated processor data as 200MHz (the real 9500 didn't offer a 100MHz G4, it was a 604 with 120, 132, 150, dual 180 or 200, and the lowest G4 upgrade cards I see are for 500MHz). I don't know if this is a hard-coded thing, perhaps if it is, would it be possible to edit that file without recompiling SheepShaver
True, they appear to be purely cosmetic things (and thus minor). SheepShaver runs fine without them, but it would make the emulation even more realistic. I'm not concerned if we cannot make such changes, just that they'd be nice with them in my opinion.
On a (slightly) unrelated note: does anyone have a good way to emulate 9.2.2. or Cheetah on an Intel Mac? I know SheepShaver doesn't emulate an MMU, and thus 9.1 and 9.2 are out of the question, and PearPC doesn't run 9.x, OS X Server 1.2, or OS X 10.0.