@agranttz,
I am getting a used LS, should be ready to go for me. Will report back on the sound. I am running JM Labs Utopia Diva Be speakers, 89 dB.
Looking at your speakers, efficiency, and knowing the amp/preamp signature in stock and semi-upgraded form, since it's 2nd hand, def worth trying it first and see what tubes and caps are installed now. Thumbs up!