Yes, it is so hard to get rid of daylilies. They are living things, and I seem to get attached to every one. It definitely helps to compare the new ones to the ones to be removed. Perhaps you could donate to a local park, school, church, or botanical garden? I wonder if there are members of NGA who live in Italy who might want them. Maybe they would even trade you for some lavender or something you could use for your soap. Does anyone know how to do a search for members by location on NGA?
About shipping: Daylilies are very resilient. Shipping in Fall or Spring is typically best, since that's when the weather is mild, and the plants are not as stressed. I have had daylilies out of the ground for more than a week, and they lived. I don't recommend that, but 2 or 3 days in the mail won't hurt them. Just wash them well, trim the leaves down to about 4 inches or so, allow them to dry, and wrap in newspaper. Hope this helps, and good luck!