Turns out you can get the Supreme at a low level, my level 30 account has just crafted it. Shame that in the minute it took to craft, I lost concentration enough to put a 20 hour Island on the one and only nest. On the plus side, I didn't muck up that badly during the tales lol! So I have to wait another day to see the awesome egg, and then however long for the dragon, but I don't have to ridiculously level up my account just for it, so I might still get another low levels tales out of it