This may not help but I'll offer it. Many years ago (late 1970s) I had to downsize my system and a trusted local dealer recommended the Rotel RP-3000 table and arm, a somewhat similar DD unit. The arm appeared to be a copy of the SME and overall it was a good performer for the money.
Like any other component, when asking about anything used it will depend on age and condition and if any maintenance or updates have been performed?
