I'm getting close to pulling the trigger on a Durkopp Adler 669 but have some setup questions. For starters, does anyone know if the Classic Silverline or Goldline can be purchased or modified with a speed reducer? If not, I would definitely opt for the ECO version. I just like the idea of having a pneumatic foot lift. Can the pneumatic foot lift and LED lights be added to an ECO? Also, is there anything I need to consider if I want to sew bindings? Thank you.