Hi,
My wife and I are on the April 11th sailing. We have not booked a tour yet, but I did find something cheaper than you have here on this website below. There are several options, but for $39 or $49 there is a seven hour tour of Ephesus and The Virgin Mary. It mentions port pickup, but I am not sure that we will have enough time for that excursion. I think the price just increased yesterday to $49.
www.ephesusguide.com