I would get tjhe right part and check with Tascam in CA to see if they have it. If you are missing roller you will most likely need caps also. Per service manual the roller is part number 580127600 and cap is 5801191500 if Tascam doe snot have it then E bay or Audio Pros in MA or Reel Pro Sound guys take machines apart all the time. They are in Montana I think. It is crazy to get a unit and be missing major parts- what is wrong with these people? To have one made could be done but might cost a lot.