I donʻt know about endgame. Thereʻs always another audio wonder out next year thatʻs supposed to put all the others to shame.
With your budget, Iʻd sell off my electronics stack, buy a pair of the Dutch & Dutch 8c, get your room analyzed and use the built-in DSP EQ to optimize for your room and be done. The D&D 8c along with the streamer of your choice and you are DONE.
No fooling with matching a megabuck amp to the megabuck speakers, tripping over the megabuck cables, etc, etc.
But if you just have to throw it all away, go ahead. The D&D 8c really will blow your mind.