Need advice on what to look for in a turntable - budget $6K to $10K

I think, any turntable in this price range will sound excellent. You just have to figure out what exactly you are looking for and what cartridge you are going to use. I understand, you plan to buy new table/arm/cartridge. Your reference to compare to should be one of the better two track reel to reel tape decks playing at 15 ips speed. Table set-up closest to it would be your choice. Easier said than done, I realize that. But don't rush it. You also want the turntable to be reliable, easy to operate and maintain and supported by the manufacturer.
But first question is belt drive or not or it depends. 

Well, you got $40k speakers and $20k amp. I don't understand why you bought $3k Parasound phono. That all metal table looks like a prototype of a new armored vehicle, Schroeder arm is nice simple and elegant, such a contrast.

Mmporsche, Brinkmann will cost more than you are planning to spend. I also suspect that it is in a totally different league. If you are ready for that you are ready to audition it.
Though I didn’t hear the Parasound phono stage, I never heard of anything world class for this kind of money, not even a single cable.
It also depends on the cartridge. Assuming adequate prices, phono stage should be two/three times more expensive than cartridge, in my opinion. It is a very important link, aren’t they all? Besides, you might want to have a tube phono stage or at least compare tube and solid state. That mid-level transistor phono might destroy your sound.