+1 on The Octave
To consider:
Rogue Audio Pharaoh II integrated (Tube/Hypex hybrid)
Rogue Audion RP-1 with PS Audio class D M700 Mono Blocks
Modwright KWH225i Hybrid integrated on on usaudiomart
Tubed pre of choice around $2K with used Bryston 4B or 3B cubed amp.
NOTE: The Bryston Power Amps come with a 20 year warranty.