An arm to live with for years to come

I've owned that same turntable and tried several arms, but not the ones your considering. Based on my experience with that table and listening to tonearms in many other situations, I would go with the SME IV or V (of the ones you list).

If you want a unipivot design like the JMW, you should consider the Graham. Preferably a Tungsten series, as late a model as funds will permit.

If the Walker motor controller works on that model VPI, it would improve performance as much as your tonearm choice. I was stunned at how much the Walker improved the TNT, even over the VPI controller offered as original equipment.

I am guessing that you want the liquid midrange that the unipivots can give, and the solid bass response and detail of the SME gimbal-bearing type arms. Usually you have to give up one to get the other. Except if you get an OL arm like the Silver, Encounter, or Illustrious. They are known to give liquid mids like the best unipivots, and the deep bass and detail of the best gimbal-bearing arms. They also have great musicality and are not analytical sounding. I would strongly recommend considering them, as I think they will do better than either of the arms you listed, and cost less too.

like albert, i've owned and used this tt, too. maybe a decade ago, or more. best combination i tried was the (long-out-of-producttion) grado arm with the highest-end grado cartridge then available. weird lookin' but on the path towards nirvana.

i would avoid the SME arms (which i've also owned), because of thier bloated bass. but, as always, YMMV.

-cfb