You should about this in three parts:
1. Music Server
2. Streamer
3. DAC
It wasn’t until I moved my Roon Core to a dedicated computer that I achieved the level of reliability needed to look at Streamers and DACs. I ended up with a Sonicorbitor i5 music server and a combo streamer/DAC - Bricasti M3 with a network card. There are a lot of other great options. This is what worked for me coming in somewhere near my budget. I went about the process in reverse order and regret it. DAC, Streamer, Music Server and assumed my MacBook Air would work fine as my music server. It turned out to be a bad assumption. I also needed a home for my music collection so I added an internal 4tb SSD to my i5. Everything works great.