Having gone through the thread again, I agree there are hardly any integrated amps not included. Power costs money, so the key to getting excellent quality in a cheap integrated, is how much you need. This applies to tubes particularly, but also Solid state, if you want some Class A bias. For me, the only thing making Solid State listenable, is Class A.
I have owned and used a lot of Integrated amps in the last 8 years, Viva Solista, Lavardin IT, Karan K180, Unison Research S6 and now the Pathos Inpol. Of all of them, the Viva and Pathos Inpol were the best, with the Lavardin a very creditable runner up. If I had to choose between them I would choose the Inpol over the Viva, just and with my current speakers.
Money no object, I think it would be the Darzeel, so transparent, fast and detailed, but not a hint of grain and harshness, a wonderful amp. I think I could live with any Ayon amp too. If I had to choose, it would probably be the SET mercury or crossfire.