Simplify signal chain and go for unified voicing?
1. Given room size, sell the two amps and replace with Pass labs pure class A (XA30.8) [that seems like a definite]
2. Add Pass pre and phonostage [or phonostage to taste]; sell the other stuff
3. Not sure enough space for dipoles to breathe. Try high efficiency on the smaller side - Coherent, Trenner & Friedel, Zu, whatever - you are at nearfield listening distance anyway
Could be breakeven if you buy used gear. Certainly much less than $7k
WIll be a simpler, higher efficiency system maybe better suited for room size. Will certainly sound a lot different
Let us know what you decide!
Have a great day