Hardshell cabin suitcase as a component for branded travel gift kits — trial order, 2,000 units

We manufacture branded corporate gift and travel kits that bundle several items — a hardshell cabin suitcase is one component we currently buy in rather than produce ourselves. We are testing a new supplier for this component before adding it to our standard kit configuration. Requirements: 20 inch cabin size only, hard shell (polycarbonate or ABS is fine as long as it is durable enough for a kit that gets shipped and handled repeatedly), spinner wheels, plain shell suitable for us to apply our own branding sleeve — no printing needed from you. Quantity: a trial of 2,000 units to start, with the expectation of a recurring order a few times a year if it qualifies for our standard kit line. Please quote unit price at this quantity, confirm minimum order quantity for a plain unbranded shell, lead time, and whether polycarbonate or ABS is the better value at this spec level. DDP to our Dallas facility.