Need preamp recommendation

If you want to blend in tubes look at the Rogue RP-5 $3.5k new and see if the numbers match up with what you need.  If you need balanced then look at the RP-7 used .  YOu might catch people moving off the 7 up to the 9. Then you can start rolling tubes which is fun.

Rogue gots good customer service as well.

https://www.stereophile.com/content/rogue-audio-rp-7-line-preamplifier-specifications

I'll second mboldda1's recommendation.  I have a DeHavilland Ultraverve (mk1 I guess) that's been great for me for over a decade.

those two mx110z's: one may not be OEM walnut case, verify with seller if it matters.

+1 on Don Sachs preamp, this is an outstanding preamp and can compete with or even better than other more expensive preamps. I bought the LTA preamp and returned it after one week. It has a nice clarity but there’s no warmth that you get from a tube preamp or even my solid state Jeff Rowland preamp. 

Would help greatly if you’d share what aspects of sound reproduction are most important and attractive to you and what specifically you’d like to improve upon, otherwise you’re just going to get a wide range of personal favorites that may or may not match with your own sonic tastes and priorities.