You could try putting out a request on the ISO site for someone to dump it saying you'll pay for the game and a little extra?
Edit: or maybe you could try to format emuNAND on a new SD card and buy it there, and update it, to get a dump for yourself? I don't know if that would work but it will cost you nothing if you have a spare card lying around (or if not you could backup your current emuNAND then do it on your current SD).