Ciao Mario,
Some days in spring should work out. The day's are not fixed yet because up to now it was the idea only. I have some places to sleep in my parents house so if the conditions to fly are not to complicated we can start to define a date. Momentarily the temperatures are not remarkable higher in Toscana then here in switzerland.
To have the feeling like sitting in a frigo I have not to drive 600km south before.
cheers
Corrado