First you have to figure out how much gain you want/need.
Both your phono stages run around 60db which is good for most MC carts.
I run a cart with 0.2mv and run at about 75db (1:15, 30ohm) which is a lot for me. If I need more volume, I just turn it up. I'm a bit wary of sending to much to my phono stage since it's already high gain.
I run Hashimoto HM-7 adjustable 1:15/30. I'm thinking of going non adjustable 1:20.
The Fidelity Research FR4 above might be a good starting place. Fidelity Research has some Ikeda roots.
For a high gain phono stage, the Modwright PH9.0 is 52/64db, 58/70db with the X upgrade, which I did.