We came at it from eastern side and stopped in Glorenza for the night, there is a nice campsite there and it is a stunning village. With a fortified wall and lovely square with a hotel / bar serving fantastic beer. We did it coming down from UK to go to Millie Miglia and wanted to tick off Stelvio, certainly harder doing it this way. Again as Rasher suggests we got near to it so he could get up there before it became too busy.