Get yourself a Sky Italia box & subscription card. Then stick a dish up for Hotbird 13E - its a massive signal in the UK.
No you cant contact Sky UK.
The best way is via a contact in Italy. It is possible to get it through UK or European based dealers but either way you will pay a hefty middleman fee. If you dont have a suitable contact in Italy then you have to go down the dealer route.
Get a standard box & dont connect it to the internet & it'll be fine.
Where do you get the Sky italia box from and subscription?