Vivek, this might not be directly addressing your query (and Rikhav is very ably guiding you there), are you sure about streaming as the input for serious listening on that kind of investment in amplifier and speakers? Intuitively I feel you‘d eventually move onto a carefully curated collection of CDs, or better still, LPs. Streaming can be higher resolution, but misses the organic character, a property that can only be felt, not explained.
Though at a lesser budget point than yours, I started similarly three years ago. And its been a hugely educative as well as belief-changing journey since then. When I started, I was insistent upon new equipment from reputed brands. I‘ve since come to realise the power of vintage equipment when I heard my Cambridge CXC transport + CXN (streamer DAC) getting trashed by the sound from an old vintage (TD1541A based) CD player I acquired at less than 10% cost of the above combine. Also, for any serious listening I can only think of CDs, though I continue to explore newer music (new to me, not necessarily contemporary) through the feature-rich streamer. (I am convinced LPs would be better, but keeping that for phase 2 of the journey few years down the line)
Further, the sound improvements I could get through continually experimenting with speaker placements, exploring different ICs and cables, and equipment isolations have been eye openers. Also important learning has been the discovery of the kind of sound signature I like and don’t like.
What I am saying is that there’s going to be a lot of learning - about sound, about equipment and about your own self as you go along. That’s the beauty of this hobby in a way. And looking at how studiously and conscientiously you are going about your decision making, I can see that happening with you too.
Another important learning has been that the wise members of this forum provide far better advice than dealers ever can. And it’s not just the advice, but constantly reading various threads, discussing individually with them, and so on, that helps you greatly shape your own knowledge and understanding. You have to be able to filter out personal sound/equipment biases though.
So, while I can understand your state of mind: “let me get the best possible rig and then sit back and enjoy my music for years, if not decades”, seeing your personality disposition from your threads, you’d start enjoying the ever-new explorations, findings, learnings and paradigm shifts that constitute the audiophile journey as much as discovering and enjoying your favourite music.
I hope this post doesn’t irk or disconcert you. At least it’s not meant to. Enjoy the journey! There’s perhaps no destination.