Made the drive to Harbor Auto Trading in Duluth — posting notes since this board runs on receipts. They keep around 74 vehicles, mostly work vans and fleet vehicles. They were totally fine with my mechanic doing a once-over, which honestly settles half the trust question.
Lot address: 4063 Fleet Way, Duluth, MN. Visitor parking: Front-lot customer stalls facing the office; overflow on the side street near Duluth 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 3-month/3,000-mile limited warranty.
Overall: good people to deal with. 11 years in business around work vans and fleet vehicles, doc fee $299 and it's on the window sheet, no games. I'd send a family member there.