Wilson Audio Sasha Mk I


Hello everyone - I wanted to get some advise on buying a second hand pair of Wilson Audio Sasha MK I speakers, and pairing it with a Plinuis Hiato amplifier:
http://www.pliniusaudio.com/en/Plinius_Range/Integrated_Amplifiers/Hiato.html

which I have connected to a Plinius Koru phono stage:
http://www.pliniusaudio.com/en/Plinius_Range/Phono_Stages/Koru.html

Connected to my Clear Audio Concept turntable with the factory installed MC cartridge:
http://clearaudio.de/en/products/turntables-concept.php

I listen to all types of genre, from rock, pop, jazz, hiphop, and I also have a REL T9/i sub connected to the system, which I may or may not use:
https://rel.net/shop/subwoofers/serie-ti/t9i/

Could I please get some educated/professional advise on whether the Wilson Speakers would be a good long term investment for this setup.

Thank you in advance
singaporeinnovation
@ricred1 , As you might guess I own a set of the Sophia 1s, have had them for 8 years and really love them but do understand that they aren't everybody's cup of tea, with that said I have heard the Sasha 1s in a couple of set up and really liked what I heard. Also find it telling that after visiting the Wilson sound 3 times that you found it necessary to sell everything and start over.
When you're buying stuff to fit in, or be part of a club,  as opposed to listening to components with you own ears, it's easy to understand why I started over. I purchased every Wilson speaker without listening to them on the advice of a friend that was a dealer. You would be shocked at what I paid. I made money when I sold my Sasha Is. So, all in all I didn't loose any money,  but more importantly I started to grow in this hobby. I started to trust my own ears. The great news is it's okay if you love them. I love my Monitor Audio PL 500's! There are no absolutes in Audio, only preferences! 

I should add that I'm very lucky to have a very, very good friend that's a dealer. He's different than the guy that sold me the Wilson's. I can listen to components that I want to try in his system or in my own system. That's how I buy components now. I use my ears!

 So, back to the OP's question. My answer is only your can decide what sounds good to you. If possible try to get a home audition. If not, see if it's possible to take your amp to wherever the speakers are located.

@ricred1 , I can guarantee you have a good friend as a dealer, with all your changes I love you too, you have obviously sold some very good equipment on the used market which is where I normally buy.