Pompeii guide/driver recommendations?

I'm looking for recommendations on a private driver/guide who can drive 4 people (with luggage) from Naples to Sorrento with a 2
hour stop at Pompeii. Our trip is in April. I know there are many companies and private individuals who offer this, but if someone can provide a personal recommendation, that would be great. I'm aware that there are lots of guided tour opportunities once you get to Pompeii if you don't want to visit on your own or with an audio guide. Shall we just focus on getting a driver, and have our Pompeii tour guided by one of the regular guides we can get at the ticket office? Or is that-hit or-miss quality and we should consider hiring a guide ahead of time? I've found companies that can provide just the driver, or if we prefer, one of their guides will accompany us, but given that our starting point is Naples and we want to be dropped in Sorrento afterwards, I wonder if the extra travel time would make the guide's fee too high. So maybe we hire a guide independently from the driver, someone who will just meet up with us at Pompeii? It appears that when you hire a driver to go to Pompeii, they stay with the car, to keep your possessions secure, and we like that, so we're not looking for a person who does both the driving and guiding. I'm aware of the Rick Steves shared tour of Pompeii offered by Mondo Guide but it has an 11 a.m. meet time and we won't be able to get there that early, given the plans we have for that morning in Naples.