Ideas for Pre/Power $9000?

If you like your speakers why sell/off load them?

Because a poster here dissed them?

Pick up a reasonably priced amp (hopefully better sounding to you than your previous receiver) and move on.

To spend $9K on gear (based upon chatroom feedback) that you cannot audition makes little sense to me.

I'm nuts/have gobs of cash/money, because I'm frugal, and even I would not do that.

Eventually plan a longer trip/drive to audition gear as it's not like you live in a wasteland state (or even next to one).

DeKay

If you are willing to explore used - I'd consider Moon 390 and 330A.... It's a preamp with streaming DAC and phono stage and an amp. 

9K is a lot of money for an amp. Especially used. You can buy a great amp (or pre and power) and a pair of speakers for that.

I could go down a long list of recommendations for each but the easiest will be to use the 30-60 days return policies of Amazon, Crutchfield, safeandsoundhq, AudioAdvice, etc. and try a few things. 

there are many excellent Power Pre and Integrated amps at your price point. Your current speakers were excellent for the price...the new 6.2 version of them are on sale for about $600 pair including shipping, so not much value in selling yours...

I agree that there are many choices for either a pre/power combination or an integrated. That said, I believe if you are willing to spend 9K on amplification you aught to be thinking on spending about the same on each of speaker and source improvements down the road. If not I would advise rethinking allocation of funds across the board.