I heard the Yamaha M-5000 stack with the NS5000 and I said pass.
I found out that I can sell one of my headphone amps tonight after finally setting up my CODA #16 as a headphone amp. I am using a custom made 25 foot cable to the amp. It sounded great and looks a bit crazy.
What that means is that I can replace the modded Peachtree GAN1 with a separate amp fairly soon. The GAN1 can be used for headphone duty. I think I will give the German SPL s1200 amp a shot with my Benchmark LA4 preamp. Never heard it but people are saying things about it that match what I am looking for.