The only item in the Teres that could be a problem..maybe..is the bearing. All of the other components can be duplicated. Well, the platter would not be so simple but platters don't break easily. Buy an extra bearing if you buy a new Teres and that will allay any fears of winding up with an orphan. After all, all it is is a base, armpod, platter, motor, and bearing. The motor can be replicated from other sources. Same for a turntable such as a Clearaudio or Scheu.
You have a very good turntable. The unipivot arm may not be the best match for your new cartridge but that is only a guess not having any experience. I prefer a traditional gimble type arm.
You have a very good turntable. The unipivot arm may not be the best match for your new cartridge but that is only a guess not having any experience. I prefer a traditional gimble type arm.