I enjoyed reading about your plans ! It's fun to see what everybody is doing.
My only suggestion is to consider taking a taxi in Tunis. I read a trip report from a Diser who went to the Med last summer. Apparently, Tunis has really got their act together at the port. When you walk off the ship and go through the pier, there is a taxi stand where you can arrange your tour. Just tell them where you want to go and they'll tell you the fare. You pay right there and then they take you to your taxi. This family that was giving the report said they only paid 60Euros + 10% tip.
I read another report that said if you go with
DCL to Sidi Bou Said, they drop you off at the bottom of this steep hill. By the time you climb to the top you only have a few minutes until you have to head back. They didn't have time for a snack or time to shop !!
Our plans, subject to change :
Malta...Blue Grotto & Fishermens Village, DCL
Tunis... Sidi Bou Said, Medina, the Mosque, Taxi
Naples... Amalfi Coast, Stefano RomeTours
Civitavecchia.... Rome Countryside, Stefano Rome Tours
LaSpezia.......... Cinque Terre, on our own
Ajaccio........... Beach..relax! , on our own
Villefranche.... Naples, Cannes, St Paul de Vence, Antibes, Revelation Tours