I think I would consider keeping the P75 and getting a line stage. It is small enough that it could be tucked away out of sight, and it isn't something you would need to fiddle with. And you get greater isolation of your phonostage from the power supply etc of the preamp
As for a linestage, maybe look into a Rogue 99? There is a Super Magnum version for sale at Audio Circle that is upgraded to Super Magnum status. You can read a recent review of it at Stereo Times.
As for a linestage, maybe look into a Rogue 99? There is a Super Magnum version for sale at Audio Circle that is upgraded to Super Magnum status. You can read a recent review of it at Stereo Times.