Its the same old, where its from, what code its sent under and who the carrier is. But you'd be looking at about 5% for Duty probably and 20% for Vat and around £15 for a couriers fees. So somewhere around £327 would be a safe bet.
Only the other way round, so exporting from the UK to EU. On a similar value to Italy it added roughly 350 euro to the overall amount in import and local VAT.
I’ve briefly looked in to customs charges on a set of wheels ~£1200 from the EU but it’s pretty opaque.
Does anyone have any recent experiences?