I would suggest getting a dac independent from the streamer simply due to how much the tech can change. That being said I recently acquired a Grimm MU2 which is an all-in-1 dac/streamer/preamp. The front end I was going to replace was an Auralic S1 streamer w/ external psu to a Laiv DDC to Laiv Harmony to Holo Serene preamp. I wanted to try a top end dac and when I figured I could get the Grimm and replace my whole front end I went for it. I’ve had it about a month. It does sound great. However I recently hooked up the Laiv Harmony to the Grimm’s analog inputs. Using Roon I can stream to the Grimm and Auralic simultaneously and toggle back and forth instantly. I have to say that while I hear an improvement with the Grimm is images being a deeper and more dynamic it is very minor. So minor that I really have to listen for it. I mostly listen to music and medium to lower volumes and in that case I can’t hear a difference. Or at least a meaningful difference. Is the Grimm better? Yes. Is it more enjoyable? If I’m being honest, probably not. Considering once I sell my existing equipment the Grimm will likely end up costing about $6k more. For that I’m leaning towards selling the Grimm and keeping the Auralic/Laiv setup. Now in this comparison everything is coming into the Grimms preamp section. I still need to do a comparison using the full Grimm vs full Laiv including the serene preamp. But, I’ve loved that serene preamp and I doubt the Grimm will sound $6k better.
So my advice is Laiv Harmony + Laiv DDC + good streamer (holo red, araulic, etc.) and you should be able to put that together on the second hand market for under your budget.
for reference, I’ve also had the Holo May, Denafrips Terminator, PS Audio, SW1X, and some other higher end dacs. The May was my favorite but this Laiv combo may be just as good for less.