I'd start here: www.dzogchen.it
even though their main center is only sort of close to you, they likely have contacts in your area.
You could also inquire here: www.tendai.eu
as I know Shomon has some things going on in Italy, and if nothing else, can direct you toward some contacts.
Thanks to the help of generous sponsors (most of them from DharmaWheel), I'm doing a Vajra Armor (Dorje Kotrab) self-retreat this summer. May the merit be yours!