I mean... just test/release for 1 to 2 mainboards and perhaps 1-2 cpu's....
The mainboards would be outdated and unavailable before the OS is even released. Seriously, if you are into this kind of stuff - look at AROS. It won´t get any better than this if you are on x86. We don´t need a second AROS, we already have one. The only way you could improve an x86 Amiga-like experience you have to nail the API on top of Linux which has no driver problems. But according to some MorphOS fans on this site, Anubis isn´t going well at the moment.
