@milpai seems the Weiss 204 is within your budget, if you don't need a streamer module, and you are okay with no native DSD and just the 3 USB/SPDIF/AES standard inputs. It is delta sigma but dual mono and Weiss is of good repute.
Another good choice would be Ferrum's Wandla, even cheaper and has a streamer module and lots more inputs, filters, and sample rates. Also does native DSD I believe. I own the Ferrum Hypsos LPS and it has been rock solid for 2 years now, Ferrum is a trusted European OEM so has a history of reliability.