I sometimes wonder when people say that a computer running AmigaOS4 is not really an Amiga.
So according to this logic, the calculator tool running under AmigaOS is not really a calculator?
Why do we need the primitive (by todays standards) Amiga custom chips to call the computer an Amiga?
While some people were using Amiga's just for playing games without touching AmigaOS ever, some of us were using Amigas purely for AmigaOS not caring about custom chips at all. Actually some of us were using RTG graphics cards and sounds cards to overcome the limitations of the Custom chips!
Simply make the new AmigaOS x86 emulate custom chips using "custom chipset drivers" instead of running things inside UAE. That way everything will be seamless.