turntable/cartridge for old 50's 60's rock records.

then your budget is under 20K?

Based on just reviews, the PrimE. w/ a good LOMC delivers the goods. Naturally, you're gonna plug that into a competent phono stage which is equally important?

There is no such thing as a cartridge that is better at rock than it is at some other form of music. The same is true of a turntable.

My (really quite serious) suggestion is whatever turntable and cartridge you have now with a Herzan active isolation platform under it (which should take care of your $10k)

installing a TS-150 underneath my EAR radically improved the solidity, pace and detail in my mono LPs, and of course also helped with stereo as well 😎