US Audio Mart has all the mentioned brands for sale as of today.
Both USAM and Hifi Shark have the ability to notify you when a brand becomes available.
Probably a dumb question
I am looking for an online or other dealer that handles top end used equipement. I have used TMR,Ebay, Craigslist, Facebook. Am having touble finding any Coda,Plinius Boulder,or Gryphon for sale used.