The hash I get from the ISO's properties is a8b5df0b0816280ae18017bc4b119c77b6c6eb79
It's the en_windows_8.1_with_update_x64_dvd_6051480 I know I've done something wrong along the way, but I'm still not sure of what it is.
I'm a complete moron when it comes to this, but after I selected the x64 english version and ran the hash check, I never got a "matching" set....