And where is the point?
680x0 is expensive but slow. Without custom chips it is not (classic) Amiga, but on the other hand AGA chipset is already slow, poor and unavailable. Really, AGA chips can't be produced anymore and AGA emulation in BoXer never worked IIRC.
Get x86 box, install WinUAE and you have new Amiga.
(Or buy a *** :lol:)