recommendations for a replacement for a Levinson no 23

My long loved Levinson no 23 has died and I need help on options for something to replace it. My system is like me, old/old school, but mostly still functioning. I assembled the system and then took a long break from buying gear to raise 5 children. I've gotten years of enjoyment from it and it helped keep my sanity raising the 5 children.
My system is as follows:
Linn Sondek, Ittok, Linn cartridge
Oppo 95, a couple of older disc players, 2 old dacs and an apple computer with an Maudio card
Linn Kairn preamp
John Curl Symmetry ACS-1crossover with an outboard Levinson power supply
Bryston 4B driving a pair of Hartley 24" subwoofers
Levinson No23 (currently dead) driving MartinLogan Aerius loudspeakers
High end audio in my area is very limited and the lines of gear they have on hand are also limited. So I am 20 plus years out of date on whats out there and how it sounds. I love the sound I got with the no 23 and would prefer to stay with SS gear. My budget for this endeavor is about $3500. Any recommendations would be greatly appreciated and I thank all of you in advance!