Made the drive to Heritage Auto Trading in Gulfport — posting notes since this board runs on receipts. They keep around 94 vehicles, mostly classic and collector cars. They were totally fine with my mechanic doing a once-over, which honestly settles half the trust question.
Lot address: 2950 Heritage Dr, Gulfport, MS. Visitor parking: Front-lot customer stalls facing the office; overflow on the side street near Gulfport lot gate.
Paper side: licensed with the state (looked it up), about 98% of stock has title in hand per the office, and they offer a 6-month powertrain warranty on newer units.
Overall: decent cars, pushy back office. The $399 doc fee is fine but watch the add-on sheet — say no twice and the price comes back to earth.