Pre-owned cartridge recommendations for $500 and $1,000

Looking for cartridge recommendations to match my system, which is as follows:

Yamaha PX2 TT with Hana EH (also have Technics SP15 with AT arm and modded Denon 103R)

SAS Audio Labs 11A line stage and Eastern Minimax phono stage  (also have Classe CT-SSP)

Chapter Audio Model Two amplifier (also have Cary 200.2)

Acoustat 2+2 electrostatic speakers

Sound dispersion panels behind the Acoustats.  No other sound attenuation.  Room is carpeted.

Musical Fidelity A5 CD player (also have Metronome tube CD player)

Listening room is 13 x 22 x 8.  I listen mainly to jazz and rock.  I would appreciate your opinion with my system if spending $1,000 will yield an appreciable difference in playback vs a $500 cartridge, and if you feel there is a budget sweet spot (maybe > $1,000) for best value to sound ratio.

I seek a natural sound with good imaging.  Appreciate your thoughts and thanks in advance.