Thanks all for your comments so far, here are my responses to some of your notes above:
i) I have all SIltech wires from AC to speakers (G5 level mostly) will take a look at Yter thou (never heard of them before)
ii) Budget is not an issue really - I am not rich but have good credit score :-) (The Sitar is at $9,500 MSRP)
iii) I had the Jadis Da50 Signature some years back while my time with the Avantgardes UNOs, nice amp and can give it a try again.
iV) I have not had good experiences with subs, they fix some issues but add some other sonic artifacts that mush mids most of the times - I have a friend with a REL Strata and can try as well.