AFAIK, If you purchase a Legit Retail Key the ISO will be included. Finding one will be the hardest part. Expect to pay $200.00 US plus
N is for the EU version that comes without the media player. I used regular 8.1 for my laptop that apparently came with single language. Unless something has changed that nobody knows about, the Pro ISO from the MCT still contains Both Core and Pro ????
Right now I'm more interested in seeing if there are any problems getting updates on a fresh install. I installed Core into VMWare Workstation and so far the updates seem to be working perfectly
UPDATE: Windows update worked perfectly as well as upgrading Core to Pro
*Forgot to say that if you mistakenly install Core, since it's the Same OS, only with some features locked, You can just upgrade it to Pro using the C9WKB Key here:
Activate retail Windows 8.1 with Windows 8 Product key. then activate it with your purchased Key