Look at getting some used PS Audio BHK equipment. Both the Signature preamp and the 300 mono blocks are hybrid, with tube input sections so you can configure the sound to your tastes. Together you should be able to get them for $9-10K, leaving you at least $20k for speakers and a streamer. Speakers are a more personal choice, so I’ll leave it to others for suggestions, but I will add another vote for getting an Aurender streamer.
All the best.