Sounds like a great DIY project
If you want to save some money, I am using the Tempotec Sonata HD Pro as a DAC with my PC connected to my headphone amp and with a speaker amp
https://www.amazon.com/TempoTec-Sonata-HD-PRO-Android/dp/B084YX4MZD/
It is the same DAC (different branding and case) as the HIDISZ S8. You'll see that it also measures extremely well, like the Atom DAC
https://www.audiosciencereview.com/...dizs-s8-usb-c-headphone-adapter-review.10823/
A few people have encountered some stuttering or popping issues when used with their PC. I haven't experienced that, and others are using it successfully as well. Since Amazon has free return shipping on it, worth giving it a shot given it's $37. Just turn the volume up all the way on it, and it will remember that each time your PC turns on.
Also works very well as a portable DAC/amp with my phone for my headphones.