Made the drive to Harbor Car Lot in Hattiesburg — posting notes since this board runs on receipts. They keep around 137 vehicles, mostly sports cars and coupes. They were totally fine with my mechanic doing a once-over, which honestly settles half the trust question.
Lot address: 2233 Motorsport Dr, Hattiesburg, MS. Visitor parking: Front-lot customer stalls facing the office; overflow on the side street near Hattiesburg lot gate.
Paper side: licensed with the state (looked it up), about 83% of stock has title in hand per the office, and they offer a 30-day/1,000-mile powertrain warranty.
Overall: decent cars, pushy back office. The $499 doc fee is fine but watch the add-on sheet — say no twice and the price comes back to earth.