I used both Shapeshifter and Fusion on my Amiga 4000, and was able to install MacOS 8.1 too and make it work properly.
sadly, I still don't know why, from some time to today both Shapeshifter and Fusion don't boot with MacOS 8.1 anymore, the program stops during the boot of the virtual machine
I have a 060/66 mhz on my CSPPC board but this was even before
I wasn't able to make iFusion work too
