@Franko to be Frank with you (excuse the pun), the best idea is to just support the AROS68k project. It already has compatibility with AmigaOS 1.3 through to 3.1, and is getting better everyday...
Saying "just support AROS instead" is completely missing the point. What we have here is a group of crooks who vultured the rights to software they didn't even make, software that is crucial to the operation of a 68k Amiga. They've locked up that software and licensed it to one company that doesn't even make it available outside of a compilation product that many of us don't want.
AROS 68k is a fine and noble effort, but even when it gets to the point that it's self-hosting, that
still won't change the fact that the real Amiga system software (not some application program,
the software needed to run the computer) is locked up by a passel of thieves and scoundrels.