Given what you’re looking for I’d recommend looking at the Innuos Zenith. It offers excellent performance and has a built-in CD drive so you can just simply rip all your CDs directly into it rather than messing with external drives, etc. Also important is their Sense app that gets top marks for usability and sound quality and is constantly being updated for better performance via easy firmware updates. Last, Innuos offers excellent customer support so if you have any questions/issues down the road you’re in good hands. If it was me I’d also add something like a Denafrips Hermes DDC that employs an OCXO clock and also opens up using other connection possibilities to a DAC, most notably a potentially superior i2S connection if the DAC accepts it. Considering performance, convenience, ease of use, and customer support this could be a very attractive option and still leaves you over $10k in your budget for a DAC.
Which gets to the DAC. That’s a very personal choice based on what sound characteristics you’re looking for so not knowing that I can’t make any meaningful recommendations. At your budget I’d be looking at Bricasti, Meitner, Weiss, T+A, and Lampizator (if you’re open to tubes) among others. Hope this helps, and best of luck.