Integrated suggestions

I'd certainly be tempted by the Willsenton R800i, which would leave you with $1000-2000 to upgrade the tubes to your liking.

Also, maybe you could get a deal on a Synthesis A40.Virtus. I have its big brother the A100, which I prefer to any amp I've ever owned.

Good luck finding something you will enjoy for a long time.

Sugden, Moonriver or Hegel depending on your room and speakers.

The Parasound Hint has everything you mentioned and is a Stereophile class A piece of equipment

+1 on the Octave. Never owned one but I spent some time and their room at the RMAF with Dynaudio speakers and it was impressive. A modest display that sound everything but modest.

If you are open minded you might check out the Rogue Audio Pharaoh II. Tube/Hypex hybrid. Good bang for your buck gear with solid service and support, in my experience. No experience with this particular product but I have ran tube pre’s with class D amps with good success.

Also audition a Hegel Rost in my rig that was impressive.  Would considered their integrated products anytime. 

@soix  I'm currently using the V70 Class A (KT150) with the Super Black Box & Telefunken driver tubes. It's very revealing with speed & impact, plenty of midrange punch. I'm a musician so another way I would describe it is very much like an excellent tube guitar amp! 

I'll be sad to see it go but as I mentioned personal circumstances are a factor. 

I've previously owned the HP700 pre & the V110SE. Years ago I was in a position to purchase the MRE 220 but I hesitated & life moved on. I wish I had as they're way more expensive now. 

Prior to the V70 Class A purchase I considered the V80SE but really wanted full class A (V80SE is A/B) & at the time found auto bias appealing. 

If you need any more info just message.

@stringreen  yes you're right, it's a very depressing!

Don't know much about Line Magnetic apart from the name. The Belles Aria Signature seems to be a contender.