Requesting upgrade advice

Hi All,

I work from home and listen to LPs 100% of the time ~ 8 hours per day. Keeps me from sitting in my chair to long getting up to change records.

Ready for an upgrade and was thinking to upgrade to Audio Research Ref 6 preamp.

Wanted to hear from others about my next steps for upgrade. 

System below;

Audio Research LS26

Audio Research PH8

Cary CAD 211M driving Tyler Acoustics D10s with transparent music wave Ultra cables

Lamm M1.1 driving Wilson Sophia with Harmonic Tech pro-9 cables

Snake River Audio interconnects and power cables

Dedicated AC line  10 AWG

Rega P8 with Apheta 3 cartridge

Rothwell MCX trans

Monster power HTS5100 for convenience and some surge protection

Thanks for any advice