Oak Hall and James Davis in Memphis. I prefer Oak Hall, but I believe Larry Brown and Jerry West used to get suits at James Davis.
They have $2k suits like Canali and Zegna to Samuelsohn, which are probably $1k or a little more, to Hart and Jack Victor, which are about $800. All are very good quality suits. A little secret is they have a semi annual sale every early January and July, and some of these suits are reduced 30-50% depending on how long they last.
Edit: I was late and hadn't read the second page yet. Two beat me to it.