Suggestions for arm to replace VPI 12.7


I am thinking about replacing the 12.7 tonearm om my VPI Classic 3 turntable. My budget will be about $4000, and I'm willing to buy used. Does anyone who has replaced a VPI 10" or 12" tonearm have any advice regarding a compatible replacement?
sdcampbell
I would be interested, Sdcampbell, in your thoughts about the new arm, compared to the old one(just checking my hearing, here.).
Follow-up post: in a few words, the 3D printed arm is SUPERB! I can hardly believe how much the 3D arm improved the sound of my system.
Sid...there is no drilling for a VPI tonearm....they just screw into the armboard...however, I would still touch base with VPI for any special instructions.
Sdcampbell ... how much is the 3D wand? I assume the base is the same and the wand just fits on the Classic 3 tone arm uni-pivot base.

I own a tricked-out Classic turntable plinth with a Classic 3 tone arm base and wand. If the price is right, I may add the 3D wand to my bucket list.
P.S. -- Sdcampbell ... not sure if I would get more bang for the buck by upgrading my phone pre from the ARC PH-8 to the ARC Ref Phono 2 SE or upgrading my Lyra cartridge from the Kleos to the Atlas or Eatna.