Use the bypass in the MC10 preamp, and use the MC10 phono section. The MC10pro is a pretty good phono section.
If you need more gain, the direction of an older CJ pre-amp is pretty much dead on. OR ----
Look for a used EAR unit, Cary with phono stage, not the 98 too much money, although very nice. VTL, Manley, ARC, etc. I suggest staying with known names, tube reliability and circuit reliability are known items with them.
Good luck and be prepared, the ends are slightly softened, midranged plushed out and all the tooby artifacts. It will sound like a step back in detail, ---- at first, but then try and go back, and you'll find ahhh all the bass, all the detail, and then ARGGGG all that grain, and pain.
Good luck and choose wisely, and I still like the MC10PRO, darn sorry I sold mine years ago.