Need help with phono stage and cartridge upgrade.

Hi,I need some advice? I have a Schiit Mani and a Magaoka MP150 cartridge. I have $1100.00 to upgrade. In your opinion how should I spend it? All on a Cartridge, all on a Phono stage or a Phono stage and Cartridge? What's your opinion, And can you give me some recommendations. Thanks.