Welcome!
We're thinking of going in April or
> late September early October for 2 weeks but can add a day if needed.
April 5 is Easter, April 25 is Italian holiday as is May 1.
Sept/Oct is nice but both time frames will be busy-there is hardly a shoulder season anymore.
I would add all days that I could.
If you count your tip in NIGHTS you will have a more accurate picture of how your itinerary flows.
For a 13 night trip- 4 locations would be my max. A 2 night stay really means just 1 full day in that location. Every location change eats up at least a half a day. Some of your transitions will take longer.
I would drop either CT or Amalfi. They both take time and effort to get to. Both are crowded areas with difficult transportation to/from.
Train from MXP to CT will take at least 4 hours- are you sure you want to do that on arrival?
Where are you flying from?
CT- going to take most of day to get there from Milan, same for from Rome- so I wouldn’t start in CT. Start somewhere closer to your arrival point.
Florence- 2 nights is fine for your interests- give it 3 nights and day trip to Pisa from there.
Cortona would not be my choice for a Tuscan base. It’s too far east and doesn’t have the best connections. Stay closer to your towns to visit list ;)
Montalcino, Pienza, Montepulciano all need a car.
Have you considered renting car and driving for just this portion? Make Siena your base if you want to be in a hill town. Better connections and tour/driver offerings.
We stay in Pienza now- love it and it is flat.
There are ways to enjoy this area without a car. Private drivers, etc.
Getting to and from AC is not quick or easy. There are dozens of threads that address transportation in the area.
It will take most of the day. Staying just 2 nights allows for 1 full day.
If you choose to go all the way to AC- give it the time it deserves. Getting to Pompeii is not as easy from Amalfi as it is from Sorrento or Naples. (Sorrento is not on the AC but best transportation hub for the area.)
Hundreds of threads on this topic here on forum- use the Search
Rome- you won’t regret giving Rome more than 3 nights.
You must be in your departure city night before departure flight so move all Rome nights to end (if that is departure).
Use Trenitialia to research your train routes. Use Italian names:
Milano Centrale
Firenze SM Novella
Roma Termini
Napoli Centrale
https://www.trenitalia.com/en.html
Get the app.
(Next year schedule not out- just search same day of week to see your probable options).
Google Maps will be very handy as you plan.
Rome2rio.com/app is a fun tool. Use it just to get an idea of transportation options and travel time but use it only as a simple (not always complete or totally accurate) starting point. Always look at and book on official sites.
If you let us know where you are flying from we can make flight suggestions. Flying in to Florence, Pisa or Bologna might work for you.
RT Rome- makes the most sense to me- Milan is far from any of your destinations. MXP is also 1 hour outside Milan in the wrong direction.
Suggestions- you have a lot of time to plan. Do lots of searches here on the forum.
Arrive Rome- train to Florence 2.5hr
Florence 3 nights w/day trip to Pisa, Lucca?
Train to CT- 3hr
CT 3 nights
Pick up car or hire driver to Tuscany- Siena-no car, Pienza-with car
Tuscany 4 nights-car or hire driver for day trips www.toursbyroberto.com
Drop car- Chiusi, Orvieto
Train to Rome 2 hr
Rome 4 nights
Fly home Rome
Or
RT Rome
Florence 2 or 3 nights - skip Pisa?
Pick up car
Tuscany 3 or 4 nights
Drop car- Chiusi, Orvieto
Train to Naples > Amalfi - driver w/stop at Pompeii
Amalfi 3 or 4 nights
Ferry to Salerno, train to Rome
Rome 3 or 4 nights
Fly home Rome