Speaker upgrade

"If I can get more of everything my 7T does, it will be a jackpot." 

Sometimes as here, solutions (or at least the clear, first step of exploration) are hiding in very plain sight indeed. That would be to listen to what the man who created your speakers has done when he wanted to radically improve on them - & then did it again to that solution. Which would be the Aerial 20T V2. Extraordinarily higher technology tweeter, much better materials in both, a much better midrange & woofers, radically improved xover (especially in the 2nd version) & all markedly improved on the second version of a speaker (that got rave reviews in the first place & then raves for the improvement). It's in your price range new but there's a mk 1 version for sale in the U.S. here > 
https://kahlaudio.com/products/aerial-acoustics-model-20t-former-flagship-stereophile-recommended-28...
Highly recommend that if you buy these, you have them sent to Aerial for the V2 upgrade.  There are tons of dealers (listed on Aerial's website) so it should be possible for you to audition them somewhere not too far from you.

"if it is my money, will I buy this". Throwing all the speakers at me when I am trying to narrow down makes it a long discussion without results.

I completely Agree and Understand. And I apologize for throwing in brands that may not be a consideration. That said the way I look at this is that 35k is a substantial long term investment. It is important to have as much information in order to make the best decision. I ask myself what brand is going to give me the best value - evaluated at cost and advanced performance. unfortunately it is a long discussion, but one that I believe is worth having.

The way I would approach editing down to a short list is to look for brands that are capable of producing a frequency measurement that captures as much of the Audible Environment at which Humans Process Sound
(15hz -150kHz). Not many even get to100kHz.

I think the only speaker that can achieve this is the Lansche 8.2 - and its way over the 35K budget, however the technology behind it - the plasma tweeter - is carried throughout their entire portfolio. They produce a speaker within budget with an upper frequency of 150kHz. the lower Frequency is 25Hz. If you paired it with the 2 RELs the system could potentially produce a frequency range of 18/20Hz - 150kHz - depending on room treatment etc.

Even if you are not interested in this brand, the information is relevant because it provides comparable options on how you can achieve your goals. What brands that do interest you are going to perform at or close to the targeted measurement within budget? Some brands mentioned are in a significantly higher price range. Some brands measurements are much better than others. 

Magico, Marteen and Vandersteen have very impressive measurements 

VR - 55 are strong 

Rockports, Joseph Audio,  Vivid Audio measure in around the same as the Aerial acoustics 7T and may perhaps be a lateral step rather than a significant step forward. 

The measurements only help to determine the short list. As you know, what is going to make the ultimate decision is your ears. 

IMHO - I did not care so much for Magico, I have not heard Marten and really like the Vandersteen. I found Rockport and Jospeph disappointing. Vimberg is a subsidiary of Tidal (I found thin)  and although sexy, I think for the money there is much better. 

Other considerations, I know - Longer discussion, but at least you have more info to compare...

GamuT RS7 - impressive measurements - these guys are completely vertically integrated
http://www.gamutaudio.com/speakers/rs7i
Owned by https://dantaxradio.dk/
Driver production https://www.scan-speak.dk/
Cabinet production http://www.kvist.com/

Verity Audio Sarastro IIS - impressive measurements
http://www.verityaudio.com/en/loudspeakers/exr-serie/sarastro-iis

DeVore Fidelity - sleeper, Silverbacks one of the best produced
Same Measurements as VR55 for less than 1/2MRSP ( listing below 1/3 ) the price. Not as vertically integrated as GamuT, but definitely influenced
Rare find:
https://www.audiogon.com/listings/lisa4158-devore-fidelity-silverback-reference-full-range

Company https://devorefidelity.com/
Cabinet production https://www.boxfurnitureco.com/

When you have the Final - Finalist list, reach out to manufacturers themselves and let them know that your looking to make a substantial purchase, but would like auditions. They should be able to help you navigate the process, if not - then they just helped you edit the list.

Rockports, Joseph Audio, Vivid Audio measure in around the same as the Aerial acoustics 7T and may perhaps be a lateral step rather than a significant step forward.

HA! I think not. I’d take a $35k speaker from any of those manufacturers over the 7T seven days a week and twice on Sunday. Lateral move my ass, and that they may measure similarly means precisely bupkis. I’ve heard the 7T and it’s a very nice speaker for sure, but against the Aviors, Pearls, Giyas — not a chance in hell. Measurements are important, but they ain’t near enough to throw out a statement like that.

If you are seriously considering speakers north of $25K, TAD should be on your audition list. Far more engaging and musical than that of Magico, Wilson, and Rockport. The VR55's, however, are something special.

Wouldn't it be cool if you could just bolt a supercharger onto the 7t and be done? There's a pair of persona 9h currently listed for less than a pair of 5f's so buy em and try em. They do better with warmer electronics but at the price they're listed if you don't like them at home resell them.

I have the persona 7f I bought in october this year and while I don't think I need the 9h capabilities for my music at this price I would have.