Bunch Bikes located in Denton, TX, operates a business importing chinese cargo bikes. Currently selling an e-trike with 24" wheel rear, 20" wheels front, disc brakes, derailleur gearing & Dapu rear hub 250w motor. From November 2018 they will sell a two wheel Bakfiets clone. Both cargo bikes are currently priced around $3k. While you could order these disassembled from the factory through AliBaba shipping direct from China is very expensive for a complete ebike and presumably even more for a large box bike, Bunch Bikes provide US based spares and after sales support, deliver fully assembled to your door, and take care of the customs and shipping.