8-10k budget suggestions please

@asmithkash +1

"I will have this amp for 30 years."    

sure beats churning and chasing...

and yes good amps can and should last that long.  (I have an Onkyo Integra from 1986 that still kicks butt, and a Pioneer Elite from 1999 that is deep, powerful, and gorgeous... so unless there's something faulty, your Krell ought do a great job for a long time, indeed decades.)

if you do, however, happen to feel like trying new speakers, consider Concept 50, by Q Acoustics. 

Personally, I don't like "bright" speakers, though I haven't heard your particular set... But, I understand holding on to beloved speakers, as with only small update I've held on to my Epi 100 speakers for over 40 years due to their smooth clear rich balanced sound.  I also have other speakers now, too, but the Epi still due their duties in the room they're in.

so, in my experience, pulling the trigger is never a good idea.

I did it once. I got so burnt (un-resellable, hideous looking and sounding brand new speakers with no return policy) I didn't turn my system for weeks. On a pair of 1500 dollar speakers, I lost over 900. My largest purchase ever. 

I don't know how you would know this is what you need, unless you tried it and tried others. 

But of course I hope it will be exactly that, you best choice. 

@asmithkash you’re off to a good start! Don’t forget the room is probably your most important component. Once you get the room in order and get familiar with the sound, consider cable upgrades. The right power cord and speaker cables will take it to the next level. Don’t have to go too crazy - there are plenty of reasonably priced cables on a used market. 

That’s a tough room. I’d consider speakers that allow for near-field reproduction, five to seven foot max listening position to speakers. That will take much of the room out of the sound. Plenty of artificial Ficus trees, 5 - 6 feet in height and to the sides of the speakers.
The 804s MIGHT work, but a pair of Sonus Faber Olympia 3s might better fit the needs. They will provide a nice musicality and a great full-range DEEP image in fairly nearfield positioning.

@asmithkash Congrats, on the KRELL. I am assuming it is the K-300i. I have not read all of this thread, but I saw somewhere that you had a bad room.

Here is something to consider. The reason I bought the KRELL K-300i was to be a headphone amp for the RAAL SR1a earphones. Pair the KRELL with the potentially bright RAAL SR1a and you have some of the best "2-channel like" sound in your room. The room acoustics do not matter with the SR1a, unlike the B&W.

The K-300i can easily be setup for both SR1a and B&W at the same time (a flip of the switch on RAAL the adapter box). Something to consider if you like to listen late at night when the family is sleeping, like mine. Only problem is I stay up too late and do not get enough sleep.

I am bummed out that I sold the K-300i because I could use it again in my bedroom as a headphone amp (I needed the audio $$ when I sold it).