For a phono stage I would recommend a used Audio Research PH… as high a number as you can afford. I have owned PH 2, 2se, 3se, 5 (?), 8, and now a Reference 3. There is a substantial market and you will be getting a real audiophile piece of gear… well, you know, It’s audio research.
Rega are very popular and well respected. I had one many years ago and a friend has one, never did much for me. Didn’t have much bass, didn’t seem to be very quiet… but they get great reviews, so beats me. I would consider Clear Audio or a used VPI… put a couple grand into a VPI (non-suspended) and you are going to have an amazing table (tremendous bass, quiet, flexible arm.).
Cartridge choice is going to depend on the table and the kind of sound you want.