Snakeoil installed relatively easy, having in mind that I don't have knowledge on Linux at all.
Agent quickly responded on my e-mails with stupid questions.
And I should say Snakeoil os with MPD player outperform windows-based setup - sound became fore fast, and now it is almost same as I have from my "reference" CD transport/DAC combo - Metronome T3A/C6 signature. With kind help of Agent I tried HQPlayer desktop, and I should say it is a bit "lazy" comparing with MPD, but with it's long list of filters, it's possible to adjust sound according to listener perception.
This is just beginning, but I'm happy with my first results.
My "Windows" setup based on dual-PC configuration using Windows server 2012, Audiophile Optimizer, HQPlayer.
One PC was working as server having Roonserver with number of running processes less than 20, slightly tweaked using linear power supplies Pachanko SATA cable. Audio PC( tweaked to 18 active processes) based on well sounding but not new AsRock OS Formula, with linear power supply, USB out through Sotm txUSBexp. Clock signals provided by 4 outputs clock generator from SOTM, DAC-Lampizator Big7, preamp -Thomas Mayer 10Y, power amp- Jadis SE 845, speakers- Wolf von Langa "Salon". Need to say that I also have not bad vinyl player and corrector, and vinyl is still a step ahead of my digital devices, and R2R -it's just another "universe".