You don't like upgrading often so I think you might want to keep your new speakers for another, say, seven-ten years. In my opinion, at present you don't have enough funds to make this kind of move. I don't know how good the phono stage you use is. If I were you, unless your speakers really annoy you, I would replace the turntable and possibly cartridge, and would think about phono stage after that. I would certainly not add separate phono before upgrading turntable. You could get much better VPI or Nottingham or Avid new, or SME used. That would be an upgrade you may not want to do again for many years ahead. But if you must have a phono I would suggest used LAMM or Gryphon. I also know that some really like Allnic electronics.