Safe and comfortable transfer around Sardinia

Hello to all travelers! My friends and I are planning to fly to Sardinia in early July to celebrate my graduation. We want to rent a villa near Castelsardo, but we’d also really like to see the medieval architecture in Alghero, which is about 140 kilometers away. We don’t want to rent a car because Italian winding roads and searching for parking in tourist areas are pure stress instead of relaxation, and local buses run extremely infrequently on their specific schedules. Can you tell me if it’s actually possible to organize such a long intercity trip for a whole day in advance online, so that a decent, spacious minivan picks us up and a driver takes us between locations?

And I forgot to ask how the car selection works in practice: can you view the driver’s profile and the car’s rating in advance to be sure of the trip’s safety? Thanks in advance for your recommendations, friends!