Need guidance on my planned Audiophile setup based on Synthesis A100

Thank you all for your suggestions. 

@kofibaffour like your guidance about streamlining the setup. I went for the subs for the looks for sure. Rel shows go hook up subs to the amplifier channels directly,  that's one of the main reasons.  Not fully sold on the looks of the 98s. I was also wondering about S510. 

@ghdprentice @larsman I know so little about audio treatments. So, i have started reading up. Thank you. 

@sbank thank you. Room is settled.. only option  square 12 x13 bumpout of my main bedroom. :) won't be able to do diagonal. I have RME in my home office because my Arya is fed through it. Want holo; don't have holo. When I do it will become primary for the speakers. 

@kofibaffour thanks again. Can you please suggest what i will be looking for room treatments? I saw some YouTube videos and checked out sites like GIK and Artnovion.

here's what i am thinking based on chatgpt research.. not happening right away.. over time ..

🎧 Listener Position: Centered about ⅔ from the front wall

🔊 Speakers: 1.5 ft in from side walls, 2.5 ft out from front wall

🟪 Bass Traps: All 4 vertical corners (high-priority)

⬛ Side Wall Absorbers: At first reflection points on both side walls. Left wall has huge window. So, only option is curtain. Is there any other? Right wall is drywall and can be treated. 

🟦 Ceiling Cloud: Suspended above listening chair to handle vertical reflections from the sloped ceiling. What Cloud?

🟩 Rear Wall Diffuser: Behind listener to scatter backwave energy. There is a window directly behind the listening position.  It will have curtain and two diffuser panels like this one: https://www.etsy.com/listing/584791684/wood-wall-art-sound-diffuser

The link didn't work above..

I will be most likely go for contracting route after I have a decent grasp of the room treatments.