Opinions: Used BAT VK-51SE or New VK-23SE

I should have put the rest of my chain.  This will be for my 2 channel, which is currently running from my Emotiva XMC-1 processor.  The BAT would become my Preamp for all 2 channel then:
Emotiva XPR-2 Amp
Focal Electra 1028 BE II tower
JL F113 sub

@dweller I saw Kevin's video which is what turned me onto BAT.  I was looking into the Primaluna Dialogue Premium when I saw his video about the VK-33SE.  That one is out of my price range, unless I find a used one.  And I haven't seen one...

The Primaluna is right in the sweet spot for my budget.  The BAT's I'm looking at will be at the very top end and won't leave any room for cables.  If I could find a preamp in that 3k to 3500 range, I leave myself money for some good cables.  Once I get over $4k, that extra cash is not so available. 

Any particular McIntosh or Audio Research preamps you can suggest in my range?  Used is not a problem for me.  

Also read very good things about synergy between Accuphase and Focal.  But not sure I'll be able to find any Accuphase Preamps even used in my price range.

Warmth is definitely what I'm after.  I feel the Focals resolve so well that if I lost a little to gain in musicality and warmth, I'd be fine.  

An integrated is definitely a possibility.  When I was looking into Accuphase, that's the route I was looking.  Just don't think I can get into an Accuphase with my budget.  I haven't looked into the BAT integrated, I will research that.  Good point on the integrated as a preamp, leaving me an option to potentially sell the Emotiva to offset cost.

A used BAT VK300  has popped up on here for a great price. But I'm trying to figure out if that is worth the cash or should I save some money and get the 3000 SE?  Or wait for a used 300 SE in the same $2200 range.  

Is the 3000 SE worth the extra money over the 300 SE?  Anyone compare the two?