Swung by Heritage Motor Group in Rochester over the weekend since a few people here asked about them. They keep around 98 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: 4419 Motorsport Dr, Rochester, MN. Visitor parking: Front-lot customer stalls facing the office; overflow on the side street near Rochester lot gate.
Paper side: licensed with the state (looked it up), about 99% of stock has title in hand per the office, and they offer no warranty — as-is, but any inspection welcome.
Overall: good people to deal with. 10 years in business around sports cars and coupes, doc fee $449 and it's on the window sheet, no games. I'd send a family member there.