Unfortunately this is taking me a bit long.

I've decided not to recompile everything, but use Slackintosh (hey, a Slackware-powerpc port!) packages if possible.

Installer will be just one file (Linux kernel with embedded initramfs), which should be convenient for booting from just about anything.

At the moment I have some hacked up tukaani (now dead :-( slackware fork) installer with powerpc binaries. I'll try to get some HD and make it work.