Ayon DAC or...

It’s been a couple of months since I started to look for a DAC... still didn’t decide what to buy lol. I recently saw on a local auction a Lampizator Big 7 upgraded to engine Eleven. Price similar to much newer Ayon Kronos, but I started to think it’s not the best idea to but a Lampi from 2015. Even if it’s upgraded, it will be difficult to sell it later. So I guess... Ayon DAC or something completely different. :) 

Any other recommendations for a used tubed DAC up to ~6000 USD?

There’s always something better on the horizon.  I own an Ayon CD-T II and a Kronos.  I also live a few miles from USA Tube Audio.  My musical experience with the Ayon rig has been good, and then, tonywinga has to spoil my party, telling me the Helene is waaaaay better.     If the Helene takes music reproduction to a new level, it's very difficult to imagine how the Kassandra II can take the music, to yet, even a higher level?   Am I gonna have to get hotel accommodations for the musicians who show up at my home to perform???  Seriously, I wonder how audible to my old ears, sixteen R2R converters per stereo channel, will sound compared to the Helene with eight per channel?

Another question for actual USERS.  Is there any US support whatsoever for Aries Cerat.  I believe the brand is manufactured in Cyprus and I have little interest in having to send the unit half way around the world (from the USA) if issues were to occur.  If I'm not mistaken, I think I recall having seen a single dealer somewhere in the western USA?  Any insights would be appreciated.  Thanx

I know this post is a bit old, but I have been working with an Aries Cerat dealer and he has been absolutely wonderful. His site is https://unlimitedaudio.co/brands/aries-cerat/. 

Been extremely happy with the service and products. Bought a Genus, Helene, and Kassandra off him over the years.