I am interested in the 7 day "integrato" pass, not the 3 day Arte card. I cannot find info on the extent of "integration." Does it cover the Sorrento+Positano area EAV and SITA buses, the alibus, the cirumvesuviano (and other local/non reserved trains)? Does it extend to Almalfi, Salerno, and Paestum? I would like to purchase/activate the card at the airport; is this possible?