Integrated amp for Thiel 3.7's


I am sort off picking up where Thieliste, Jafant and others left off in the discussion thread about what electronics to use drive the Thiels.  I was, and I suppose still am looking for a preamp to drive my pass labs 60.5 mono's, but in reading some of the posts I have also started considering simplifying my system and just going for a high end integrated.  Part of the reason I am thinking about going in this new direction is that we may be moving- and this might be the right time to scale down.

I am not sure yet, but I have started thinking about it. 
For preamplifiers I keep on toying with the idea of a PS audio BHK, Pass labs xp12, Simaudio 740p, or an Aesthetix Calypso Eclipse.  One of these would replace my Prima Luna Dialogue Premium- as I have mentioned before I think I can probably get better detail, definition, and depth a preamp with a higher quality volume control (vs the Prima Luna blue velvet).

But maybe a high end integrated might actually do the trick as well- I cannot afford one of the new Uber integrateds but maybe some high quality used ones might work.  I am budgeting under usd10k.  By selling my other equipment I should be able to get to my budget with a relatively small additional investment (usd1-3k ?).

So I have been looking at Luxman 509x, Nelson Pass Int 250, Vitus RI-100 or RI-101....Diablo 300 would be out of my reach even used but maybe the 120, and maybe an ASR (the exclusive 2 would be so many boxes that it would defeat the whole purpose of consolidating the system- so maybe the 1?).  On these last 2 I really have no idea about how much one gives up going with the lower models.

Ultimately my hope is that the list above will still get me further than where I am with my current set up.

Anyway, would be very interested in your thoughts as I look at this new angle for my system.
pgastone
Thanks unsound.....but the price!
Can't really go there- even the progression clocks in at $18k.
^Yes, “the price” indeed! 
i think the value choice is to go used Krell separates.
Yes, but if I stick with separates I am very happy with Pass mono's driving the Thiels- they sound very impressive and have no issues driving them.  At this point I would go to my original plan of replacing the preamp which as of now I have narrowed to Pass Xp12 (to test brand synergy), Simaudio Moon 740p, or an Aesthetix Calypso/Janus signature.

I would assume that there should be some very good integrateds that should be able to compete with separates but without immediately escalating to $40k for a Momentum.
Not an overwhelming number of separates that can appropriately handle that load, and much fewer intergrateds up to the task.