You never did answer the question on cost for a new DAC (or I missed it). I have found Denafrips DACs (specifically the Pontus II, Terminator II, and Terminator Plus), to be extremely musical and almost tube like; yet perfectly detailed. Denafrips DACs are also a perfect pairing with the Jay's transports, connect directly with a high quality I2S (HDMI) cable....and the I2S pin outs match.
They unfortunately do not have a demo policy. There is a used Terminator Plus 12th for $4,800 at US Audio Mart....with free shipping. That is a steal that I'd buy for myself if I had the funds ready.