And Montreux has not been announced yet, but I got information that it would be added too. Festival is from 5-20 July. When checking the schedule it doesn't look like it will be on July 18, then it would be 16-22 is 7 days in a row.
July 15: I don't think so, long drive from Naples and the day after on 16 July it's Taormina (so to me it looks impossible to have all gear to Taormina in time.
So Montreux must be 7, 8, 10 or 11 July.