Dear Sir Madam,This is ZachVanDerwerker from US.I'm looking for a Nema 34 Stepper Motor (13 Nm minimum holding torque). I have found the following models: 34HS59-5004S, 86HS155-6004, and 86SHD4703-35B. I am OK with any of those models.I need a quote for 25 units and DDP shipping to Frederick, MD (USA, zip code 21701).Thank you!