I’d look out for the new Innuos Pulse Mini that incorporates Innuos’ latest thinking and gives you access to their Sense software that’s free and by all accounts gets high marks for both usability and sound quality and is constantly being upgraded and improved. And Innuos also offers excellent customer support if you ever run into an issue.
https://www.tweekgeek.com/pulsemini/
Also, I believe you could add their upgraded linear power supply and get significant improvements and still be right near your price target or add it later when funds allow.
https://www.tweekgeek.com/innuos-zen-mini-lpsu/
Hope this helps, and best of luck.