Why not just stay with MM phono stage, but upgraded it to 100k Ohm with Vishay naked Foil Resistors? You can use some of the best MM cartridge with your phono stage without any needs for an MC and MC phono stage. Loaded your MM cartridge with 100k Ohm you will get an amazing sound quality compared to standard 47k Ohm. The cost of this upgrade is nothing. Those resistors available from Texas Components (USA) on ebay. This is the best resistors for audio available today. Highly recommended!
BTW with your budget you can buy some killer MM from the 70s/80s era, something like AT20SLa or Grace F9
BTW with your budget you can buy some killer MM from the 70s/80s era, something like AT20SLa or Grace F9