1200GR upgrade tonearm or table?

My vinyl rig sounds so freakin’ good it should be illegal. The last item on my list is the tonearm. I’m running a Phasemation PP-500 with their top headshell. I’ve been told it works fine with the Technics tonearms but something better and heavier will make it even better. I’m thinking Glanz or Soraine.

for $3k-ish I don’t think I can upgrade the table but the arm is doable.

Thoughts?