I decided to download from MS the image they supply as I assume (correctly or incorrectly) that it should be more current than my most present image mentioned above. I'm using Rufus 3.3 to create a bootable Thumb Drive. The SSD and CPU arrived so I think I've got all the bits to give this a try. Thanks for the assist. I decided to update this post for continuity, rather than quote myself. For some reason the Win 8 Pro Keys did not work, but I remembered I'd bought a Win 7 Pro OEM Builder disk ages ago (July 6, 2011 ) when I was building another RIg which was long ago retired. I dug through my storage and found it. That Key worked perfectly. Thanks for the assist.