Will they just have pulled all the surplus sleeper/couchette stock they can find in Italy/Western Europe?
How will they be providing ETS to them? Just leaving a locomotive attached all the time can't be practical from a fuel supply standpoint. Unless they have gear to allow them to be hooked up to the grid.
450/60 = 7.5 coaches, not overly long... (guessing either 450 is a rough number or there's a mixture of coaching stock). And as it won't be going anywhere it probably doesn't matter too much if it's hard to shift.