After 30 days, 4 hours, 13 minutes and 36 seconds I dinged 70!
I left Toshley's Station to grind the last few mobs when I realised there was one more quest to turn in! I headed back, turned it in and that was it. The next stop was Darnassus for those last skills and I respecced to 34/0/27 Healkin.
Screenshot or it didn't happen: