Naples/Amalfi Coast Itinerary

I'd eliminate as much unnecessary travel as necessary such as switching hotels for one night in Amalfi. Transportation in the region will be chaotic and confusing, change that to chaotic and expensive if you use a private driver. No matter your method of transportation it can be slow and you'll waste valuable exploring time. I'd probably choose to base in either Sorrento or Salerno, but not both for such a short visit.

A quick visit to Pompeii may be all you'll want so I won't judge, but in our 2 weeks in Sorrento in 2023 we spent about 11 hours over two days at Pompeii.

Personally we loved Capri much more than any of the towns on the Amalfi Coast. So much so that it's a target for an extended start in the future. We found Positano beautiful, but highly overrated for anything more than 1-2 hours.

My husband and I will be visiting the Amalfi Coast/Sorrento area in September, our second time. I agree with Allan, it will be a better use of your time to eliminate unnecessary travel. Even with a private driver (which we did on our first trip), travel times can be slow. For what you outline in your itinerary, Sorrento may be a better base.

One other note on ferries, especially for Positano. If the weather is bad, ferries can get cancelled. One of the reasons we are going back in September is when we went in late May 2023, the weather was so bad, we couldn't get ferries to Capri or Positano.

Specifically on your day 2, we did the same thing, we had a private driver pick us up in Naples and drive use to Sorrento with a few hours in Pompeii. It was a very efficient way to combine travel time between hotels with sightseeing and our guide was excellent. 2 hours was a great introduction, but as Allan mentioned, you could spend hours in Pompeii.

On your specific question, is there enough to do for 3 days on the Amalfi coast, even without hiking, for my husband and I the answer is yes and on our upcoming trip, we are allocating a week split between Sorrento (great transit hub) and Ravello. There are some fantastic cooking schools (Mama Agata in Ravello), wonderful tours (last time we took a tour with Daniele owner of Wine Tour Amalfi coast which included a pick up at our hotel in Positano and the visits to Amalfi and Ravello before lunch, tour, and tasting in Tramonti https://www.winetouramalficoast.com/. We are reserving Daniele for another tour when we visit in September and while he has certain standard experiences, he is open to modifying to suit your needs. Also, many people use Sorrento only as a transit hub, but since we were rained out from excursions on our last trip, we spent more time in Sorrento, including an amazing food tour and lemon grove tour.

Lastly, if you have challenges with arthritis, Positano, maybe a challenge as it is a vertical village. Spending time in Amalfi or Ravello may be easier for you and both have amazing sights to visit. If you go to Amalfi, you can visit Cimitero Monumentale and there is an elevator that will take you to wonderful panoramic views, avoiding the 400 steps up.

I agree with everything Allan and SandyO have shared. We were also on the AC during that horrible weather in May, 2023, when many ferries were canceled. Folks staying in Positano were stranded, and couldn't get out. The Positano dock is smaller, so services smaller ferries, and has been vulnerable to damage by the storms.
We used Aldo Limos, who I highly recommend. Christina, in the office, is a Brit, so email communication in English went smoothly. They put together a package deal, and accepted USD, at a fair exchange rate, and provided a written receipt. Hope all goes well.
Have a great trip.