I forgot about that. Windows NT 3.5 and I think 4.0 were ported to the DEC Alpha CPU architecture and shipped on a number of (very expensive) DEC workstations at the time. So it is not totally nuts to possibly port it to the then-current Apple/Motorola PowerPC architecture as well.
https://www.google.com/search?q=dec+alpha+windows+nt&ie=utf-...