not a turbo. A turbo whine from the toothed aftermarket belts. Sounds like a bad power steering pump. Once a matched set of OEM belts are on I'm certain it'll quiet down.
Some sort of duplicate VIN or some such nonsense. The Toyota EPC pulls up a different manufacturing date than Carfax. The Toyota date matches the door jamb placard which is accurate according to all numeric codes. All body panel VINs match. Not sure where the error is and to be honest, I don't think it matters much. Truck is in great shape other than a few wear items.
I would be hard pressed to believe it has more than the stated mileage given the shape of everything I've seen. Even the common wear spot on the driver's seat is very mild and not worn through. I'm not sure anyone ever sat in the rear seats. All doors close solid like my truck used to oh so many years ago. Even the sun visors snap in place without sagging.