Wanted: Original Roland PG-200 Programmer for JX-3P / MKS-30

Ghost Market is seeking leads for an original Roland PG-200 synthesizer programmer, introduced in 1983 and designed for the JX-3P, MKS-30 and GR-700. The target is the vintage Roland hardware unit, preferably with its correct connecting cable. A working unit with complete knobs, switches and an undamaged connector is preferred. Honest cosmetic wear is acceptable. A repairable unit may be considered as a lead if faults, missing controls and previous work are clearly described. Modern clones, software editors and unrelated PG-series programmers are outside this search. Please provide photographs of the front panel, rear connection and identification markings, plus a source link and location. If available, describe operation with a compatible instrument and include servicing records. Original cable, case and paperwork are useful additions; please state exactly what is included. Ghost Market is collecting verifiable leads in its own name. This is not a confirmed buyer order or payment offer; any acquisition terms require a separate agreement. Reference photo: Verdel, Wikimedia Commons, CC BY 3.0; used unchanged. Source: https://commons.wikimedia.org/wiki/File:Roland_PG-200.jpg . License: https://creativecommons.org/licenses/by/3.0/ . The pictured unit is for identification only.